Although I must say that weedle has got my nerves up too because it seems like everyone on the wonder trade market seems to catch a box of them and trading them away
I don't hate any Pokemon lol, all of them are awesome in their own ways. As for the most annoying pokemon, that's a different story. Pokemon with sturdy are probably the most annoying due to the fact that they can't be OHKOed.
I wouldn't say hate, exactly, but banette scares the living daylights out of me! It's like a killer ghost doll with a zipper for a mouth! How is that not creepy? *shudders*