Be prepared for a reeaaaaaaally long rant =___=;
Naruto
It has too many fillers. More then half of the episodes are fillers. A few of them are pretty funny but most of the episodes are complete nonsense without any story what so ever. The producers also slack on the animation, reuse scenes, put in tons of fillers and revives everyone. All for the money.
Dragonballs
The first series was good but then the sequels.... The fights last to god for saken long. How many episodes does it take to beat someone... x_x
Pokemon
I love pokemon to be honest, but the anime is so GODDAMN irritating. Why hasn't Ash reached puberty yet? Also the fact that pokemon is everything. Since the worst and most ruthless gang decides to keep kids out of their base by fighting with pokemon, can't they use a gun? Guns actually do exist in the pokemon world. >_< Also that parents allow 11 year kids to travel around the world to fight complete strangers, preferably 'awesomely' strong gym leaders and thugs. Also how the pokemon world even works confuses me. They force creatures into tiny spaces 10 times smaller then them and the only time they are outside the pokeball, they have a death fight with of their own kind. Also they are expected to obey every word the trainer says. o_______e; It's good for when you absolutely must pass the time and for people who don't care for actual plot.
Inuyash
It is
extremely repetitive. The main story is this. Inuyasha meets bad guy, loses, gets stornger, wins and then meets a new bad guy stronger then the previous one. Also I despise how Kagome is originally portrayed as a strong person (after all she posses the soul of one of the strongest priests in history), but in the end she is just there to get kidnapped over and over again. Also I hate how Inuyasha and Kagome say each others names so many times in each episode. This keeps going until the anime ended at the 200+ episode. Oh, did I forget to say the manga is still going.
Dokuro-chan
Hmmm... what can I say about the story.

It is RIDICULOUS. The whole thing is about how someone offended god by creating immortality, which stops you aging at the age of 13. This isn't the reason why god is angry though. The reason is due to the fact everyone looks like 13 year olds they have created a 'Pedophile's World". So gods sends an angel, Dokuro-chan, to kill the main character that created immortality. Dokuro believes that the guy can redeem himself so she keeps killing him and then brings him back to life countless times hoping this will work. I have lost count how many times the main character has died.
Strange Dawn
Oh god... wtf? This anime is something that made me need to go to the therapist. It has it all. Bad art, annoying characters, poor design, horrible story, the down right stupidity and boringness. The only ones I can imagine actually enjoying this anime are 5 year olds and easily amused people, who don't mind getting their brains wacked with a hammer.
Yu-Go-Oh
It's just the entire idea of how the world is being saved by card games. There is even a freaking school. I also hate how people's souls are taken because of a stupid card and how the right card always conveniently shows up in such a large deck. Also how the main character blatantly crushes everyones minds.
Beyblade
I don't even need to say anything. Bad art and the horrible attempt to copy Yu-Gi-Oh.
Sailor Moon
Sorry to all of the fans. I loved it, I really did, but when I look at it again I am absolutely dumbfounded. I just don't understand it any more. It gets repetitive in a cliche shoujo way (I know it wasn't really cliche back then but now it is) and what happened with the last season, like seriously, what the hell happened? I dislike how annoying the main character can be. She doesn't have any real redeeming points in my opinion and somehow she has everything. In every season she has the most powerful crystal, heart thing... etc. Also I don't know why I use to like the fight scenes.
K-On
My initial reaction when I heard there was an anime revolving about music. "OMG! Kyoto Animation is going to be making a music anime!" (The Kyoto Animation Studio has made some of the best series in the past decade, in my opinion.) When it was released. "What the hell? There is no plot, the characters are the same and where is all the music?" Sure i would have been okay with it if I didn't have such large expectations, but seriously. Where is the music?
Angel Sanctuary
=___=; Rape, Rape, incest, super fetus and more rape. Basically everyone is a family and are having affairs with each other. Also it is EXTREMELY difficult to tell what gender everyone is. By the way, all the characters are angels... Nearly everyone dies and you don't want to know how. Each character by themselves are interesting enough but the story itself and how the society is portrayed is completely barbaric.
From Angel Sanctuary article in Wikipedia:
"she confesses her love to Rosiel [her brother], kills him, and absorbs his decaying body into her womb."
..... I need a vomit bag...
Rosario+Vampire
The story is this. Boobs, panties, breasts and fan service. God the manga didn't have that much fan service in it. (did it even have any?) x_X This just got worst after the 1st episode. The only real reason I watched the series was to see when the main character became infected with the vampire blood. (I didn't even really watch it, I just played it in the background and listened to it so I know when the main character becomes bad ass.)
Wedding Peach
I donno it's just... omg the corniness. I just got so embarrassed watching this I had to look away every time they got so love dovey. Also the main character is down right irritating and falls in love way to fast. >_<
Galaxy Express 999 (and the sequel)
The main character is a young boy who wants to avenge the death of his mother and ends up falling in love with a much older woman who looks exactly like his mother. The animation is bad, voice acting is poor, the only depth in the character was an unnecessary Oedipus complex and there were so many plot holes.
I could list more but I already know I am going to be hated so bad by people who love these animes.
This is just my opinion, I don't mean to put down anyone. This is only my PERSONAL opinion.
So please don't flame or troll me. >_<;