Go Bulbasaur! :P I'll always choose Bulbasaur, and I always did as a kid, even though it has to be said that it definitely wasn't the best out of the three. I just didn't like going with the obvious "CHARIZARD IS DA BEST CUZ IT'S A DRAGUN" argument and wanted to deviate from that. Bulbasaur is slated for being weaker than the rest, and for being an 'easy way out' for the first two Gym Leaders.
Regardless, I've always liked Bulbasaur the most. Clearly. :P