Ok,my turn,
My most hated pokemon would be:
Oddish:The **** thing always shows up and i usually catch it by accident
Any pokemon that use double team,sand attack,baton pass,etc.
Blissey:That thing seems to be anywere i go.From the Battle Fronteir to Netbattle.
Zubat/Golbat:There just plain annoying
Any pokemon that runs when i try to catch it
Milotic:That thing takes out my Tyranitar too much,i hate it unless i'm using it.
Febass:I CAN'T FIND THE **** THING!!!!!!!
Magicarp:Idiotic thing always shows up whenever i need a low level Goldeen,the thing isin't even worth catching or killing.(unless i need gyrados)
Deoxys(A):The thing is just too weak to defend itself.
Girafarig:I don't think this thing even have a weakness.(i can't bite it or cross chop it)
In the Anime:
Any cute pokemon:I'm still wondering how a small thing can knock out big obstacles.
Corphish:That overused lobster needs a rest.
Pikachu:Well,not that much,but still
Foretress:I just hate the thing
Ok,now i'm done