First gen starters: all cute at start, all badass late
Second gen: only chikorita is ugly as fuck
Third gen: oh boy humanoid chicken of my nightmares
4th gen: badass monkey compensates the other 2 who are ok
5th gen: just fuck my shit up. Samurott can be salvaged though
6th: humanoid chicken gave you nightmares? here's humanoid fox

it could be worse though and here is where it gets worse, the others:
pic related, don't even know his name, makes Muk look cute