The Snivy line in general because I was so hyped for them before the games came out and it turned out to be the worst starter I've ever played with. Even Chikorita was more usable than this thing and Chikorita had almost every gym and Elite Four working against it. To me, the fact that it may get Contrary at some point isn't enough to make up for its pre-Contrary awfulness. I also hate when people say Serperior's a better pokemon than Emboar and Samurott purely based on looks.
Snivy was awesomely awfully cool looking. Smudge look.
The hottest girl alive..? That goes to Miss Hanzhou. I could watch that woman strut her stuff all day long. She is the epitome of very sexy.