It's the only water starter I've chosen so far

Froakie for sure.

Froakie's adorable and in the anime Ash's Froakie is super amazing and presistent when he battles. In the episode "A Rush of Ninja Wisdom" Froakie never gave up while trying to learn Quick Attack, although he actually ended up learning "Double Team" instead.

oshawott FTW =D

Squirtle because it can evolve into Blastoise which can MEGA-EVOLVE!!!!!!!!!!

I had trouble trying to decide between Mudkip and Squirtle. But Mudkip.

Froakie and Mudkip are both AMAZING, but I like Froakie better. I like Totodile, too, but it's not on this list. Piplup and Oshawott are both great. I can't stand Squirtle, however.