Hmm... no. I much prefer Swampert than Mudkip. Its actually all the "Do you liek Mudkipz" stuff that really made me hate Mudkip. The 'straw that broke the camel's back' was what DeviantArt did to everyone's Avatars on April Fools', April 2008. -.-;;
Anyway... Swablu to Altaria was an awesome evolution. Sure, the typing was rather strange, (in my opinion) but its what made Altaria that much more awesome.
Aggron was a pretty good evolution, but personally, I kind of saw it as more of a prehistoric Pokemon, mainly for its Triceratops-like traits.
I'm trying to think of some that I don't like... but I can't really think of any... though there is a pre-evolution I really hated. Wynaut was horiffically pointless... and just as ugly as Wobbuffet...
Oh wait! I didn't like the Lotad evolutionary line; any of it. To me, Lotad was the only decent-looking one, but Ludicolo isn't as bad looking as Lombre. Lombre is where its evolutionary line started going wrong, with Ludicolo loosening the belt that started strangling them.