Zubat/Golbat. Crobat is tolerated only because it doesn't appear in the wild and I actually like it... somewhat.
But Zubat and Golbat make me want to throw my DS.
You hate Salamence for replacing Dragonite because Salamence is too cartoony?Salamence: Because it replaced Dragonite (one of my all-time favorites) and it just looks ridiculously cartooney.