Chikorita: It's cute, if not especially good. The things around it's neck look like a pearl necklace and all that stuff.
In comparison Bayleef looks like it has marijuana joints hanging from its neck and generally looks kinda seedy. Meganium looks a bit better than Beyleef, but now it just looks boring...
Hoothoot: An adorable round fantasy owl....evolves into a generic anime owl.
And while we are on owls:
Rowlet: The single most adorable starter imho, and I freaking hate both of its evolutions.
Drowzee: Adorable, chubby, sleepy Baku-like thing....evolves into a pedo-gnome?
Onix: Not that I like Onix all that much, but it deserves better than to evolve into what looks like a smelly old creep.
I also don't really like the Nidorans, Nidiorina/Nidorino and Rhyorn, but I sure like them better than the ugly, bumpy, boring Kaiju-Ripoffs they evolve into.
Dragonair: Beautiful, elegant, interesting....and evolves into something as dopey and dumpy as Dragonite...and then those ridiculous attempts to make Dragonite look badass *rolleyes* Dragonite will never be badass. It's a bumbling kiddie dragon.
Goomy has similar problems...