Squirtle

Squirtle was our third and final option for a "starter" pokemon in good old Red/Blue/Green, and while it's a stiff competition, I'm gonna say it was also the cutest of the three. The nubby pudginess of a turtle coupled with its round, flat face is an automatic recipe for adorability, and even the name, Squirtle, screams cuteness, even if it's also ripe for any number of obscene jokes.