The main character was a Sue (obviously) and was in love with Eli (for those not in the know, think dark, sort of emo dude with a few emotional issues. In other words, ideal Sue lust object!), and they were both in college and parents of toddlers. The beginning is mostly just both of them being worried about their kids getting too attached, which they were right to worry about because as soon as the kids met Sue/Eli, they started calling them 'Mommy'/'Daddy.' Now, I'll admit that I'm not the biggest fan of kidfics already, but this kind of stuff really annoys me so I was ready to keep spite-reading.

Then, in true Degrassi/soap opera fanfiction, it turned out that Sue's child was actually a twin, and Stalker behavior, abusive ex-partners, child kidnapping Then, after all that, they find out that Eli had a twin brother, and his 'son' was actually his nephew because his (now dead) ex-girlfriend had gotten into a fight with him, slept with the twin brother, and then didn't tell anyone about the mysterious stranger with her boyfriend's face.

Thankfully, the title of this fic has been erased by time, so I am not tempted to torture myself all over again by reading it to fact check any of this. I think Sue's name might've been something like Angel, but I'm not sure.

My least favourite would be You'll See (NSFW)

If I recall correctly, the fic stars a Sue who started out as someone who was brainwashed by Eggman into believing she was his niece, despite said Sue being a hedgehog. The prose is rather beige and the dialogue came across as talking heads to me when I first read it.

I name it my least favourite because this fic contrives ways to keep this cycle of her getting kidnapped then tortured (for nonsensical and OOC reasons), then rescued by her prince charming Shadow, and I'm like, "geez, get new material!". To be fair, the cycle did end when she died near the end of the fic.

My favourite badfic so far would be Shada The Hedgehog new beginnings (NSFW, NSFB)

The canons in the fic are OOC, the OCs are dumb, there are hybrids of species that can't reproduce with each other, there's terrible SPaG, and a seemingly non-existant plot, but the bad spelling and the all-caps make it funny imo.

Oh yeah, one chapter attempted to have characters talk like little kids by inserting random w's in front of words like here:

"Mommy can she play boys wstuff like wction wigures?"

~Ozzielot

Who can ever forget Jenna Silverblade and her tiger comparisons perfect case study of the stereotypical fangirlism-loaded Suefic?

Ebony Dark'ness Dementia Raven Way is funny in how over-the-top she is because I'm 99% convinced it's a trollfic. (Before anyone comes in saying that's been proven true and the author has been found, no she hasn't, she was lying about it.)

But Rose Potter was written with what seems to be full seriousness. There's a reason I went to the trouble of killing her six times in a row.

As outlined here, the worst fanfiction Stu I ever encountered directly was likely Rick Evans, who has every Gary Stu trait cranked up to eleven. He's genuinely textbook Stu.

Every woman wants him, and loves his presence. Men simply shrink away, cease existing, or only passively bask in his glory. The only thing ever spoken about is Rick, the only thing people ever think of is him. He's arrogant, entitled, violent, egotistical, and insecure beyond belief, but everyone constantly praises how kind and charming he is. He has the power of all the powers and, from my memory, was never even injured in a fight.

The story focuses so much on Rick that none of the other characters even exist beyond token mentions.

There's some other things I'd consider, but none strike me as much as this one.

Ronan Beelzub (be warned, fic is intensely NSFW and NSFB) the Naruto Stu whose fic is worse than For Your Eyes Only in terms of squickiness, boggling story and atrocious technique. He's also responsible for an army of minis and mini-Stus due to the fic's inordinately high concentration of terrible SPaG. To give you an idea of how bad it is, this is the first paragraph (excerpt contains NSFW mentions):

the SPaG, it hurts

It has to be one badfic with a title that is, well, does exactly what it says. It's called "Pbql'f zcert ovegu" (rot13'd) and it basically delivers that.

Warning for the blacklist items coming into play.

Cont., with added bl3

So yeah.

Oh! I nearly forgot! The grammar is poor. The entire text has two paragraph breaks. Two. It's a text wall otherwise. Several characters speak one another's lines. It annoying, even without the content.

I tried nominating it for Bleepfic earlier, but that fell through.

It's horrible. It haunts my dreams sometines.

-kA

Wiki article with summary here. I'm biased 'cause I missioned it, but the thing is, I had fun missioning it (even though my agents didn't). The absurd logic, metaphors/similes, and general word choices are just hilarious—even more so because I'm pretty sure it's not a troll, which sets it apart from most of the other Legendaries. It's also not smut apart from one or two chapters out of thirty, and even those are so bad it's funny.

... I should probably mention that I find "C*l*br**n" funny these days, and that's the grandmommy of all smutty trollfics, so take that with a grain of salt. I stopped being offended by the presence of sex in fanfic a long time ago. Right around when I found out "asexual" was a thing you could be and got square with that, oddly enough. {= )

But, yeah. BRN is genuine, unvarnished, over-the-top weeaboo nonsense, and it's great. Reicheru actually has kind of a cult following of fans who know BRN is terrible but love it anyway, and I guess I'm one of them. ^_^;

In second, I think it's a tie between "Land Before Time: Littlefoot x Cera" (mindboggling cartoon-dinosaur pr0n expertly sporked by Trojie and Pads) and "Ring Child" (very silly three-year-old-istar!Harry Potter and many delightful malapropisms).

In third... gosh, how to choose between the likes of Alumia the Woodsprite, Bob the Sandwich, Harrow the Balrog, Honesah Hoononee Keemo, Sakhmet Black, Solaris the "Dark Elf"... Well, all of them have wiki pages listed here. If you're looking for reading material, you can't go wrong!

~Neshomeh

Three jump out to me, personally. All are NSFW, and two are definitely Bleepfic. The third is, to quote Nesh, "boring dubcon" but IMO it's worse than some of the Legendaries.

Rise of the Drackens is a Harry Potter fic. Basically, Harry discovers that he is an endangered Dark creature called a Dracken, and Dumbledore is extremely accommodating. The problem is that Drackens get soulmates, and Harry's soulmates (Blaise Zabini, Draco Malfoy, and two OCs) spend most of their time emotionally abusing him (which is portrayed as True Love).

This is all pretty standard until we get to Dumbledore setting up a hotel for Harry's various suitors and an entire chapter dedicated to brutal torture of a random bit character by Harry's mates. If you feel like learning more without reading it, the fic has its own wiki.

THE RIGHT MATE AT THE WRONG TIME has been missioned, and the mission serves as a decent summary: Bill Weasley is a werewolf who decides Hermione is his mate, every other male character finds Hermione irresistible (including Remus Lupin), and there is a ton of Ron-bashing. What the mission didn't get into was the guardian angels who then have to be rendered helpless whenever they could actually do anything and the mascara-wearing Acromantula. I don't know, either.

In third place is Undercover Woes, a Transformers fic. Bulkhead and Sentinel Prime have to infiltrate a super-conservative religious farming cult in the middle of nowhere for some reason... and their cover is that they're a married couple, which works until people notice that they aren't having children. The summary doesn't sound bad, but the fic has a gift of describing everything juuuuust well enough to be horrifying when considering the source material.

Saibankannokami Takara Kishimoto a.k.a. Bakara a.k.a. my all-times holder of the title of worst Sue ever in the Touken Ranbu fandom. She wins this title through sheer unlikability and implausibility; in short, she's incredibly abusive and tyrannical and has her abhorrent behavior excused as "tsundere", and is the granddaughter of a historical figure who's supposed to be dead 3 centuries before she was born. The four-part mission to this fic will tell you all you need to know.

Danisha Wood, the alleged heroine of the classic Back to the Frollo and its sequels and spin-offs. She's a 20th-century African-American teacher who goes back in time to medieval France and falls in love with the Disney version of Claude Frollo, who is portrayed as a promiscuous sex symbol with a harem in this fic. Highlights of Danisha's ugliness include forcing modern American culture on medieval Parisians, demonizing and assaulting Esmeralda for not submitting to Frollo, and being overtly racist against the Romani despite being unsubtle and obnoxious about her pride in her blackness.