I'm gonna list the pros and cons I fell these Pokemon have
Bulbasaur
Pros: One of the original 150 and first in the pokedex, his stats are fairly alright.....not really
Cons: No good STAB attacks, you have solar beam but you have to charge that up and its main game was GenI so no sunny day
Charmander
Pros: He turns into a dragon, nice move set.....okay average move set
Cons: Charizard does seem all cool but honestly his stats don't go well with his moves
Squirtle
Pros: He's a turtle that squirts water, he's fairly nice if you give him the right moves and his hydro pump is really good for defense in the anime
Cons: You can't use Hyrdro Pump up close if you're a Blastoise, your teeth aren't sharp so I don't see how your bite is going to help
Chikorita
Pros: OMG razor leaf at lvl 8, that's nice and reflect and light screen nice defense there
Cons: Same with Bulbasaur no good STAB attacks unless you had the NYPC stuff to get Petal Dance
Cyndaquil
Pros: Good sweeper, can learn Eruption and Thunder Punch, evolves at lvl 14
Cons: Takes too long to learn Flamethrower, not the best defense or offense
Totodile
Pros: Nice base attack, much more improved in GenIV thanks to the physical and special stuff
Cons: Feraligatr's back sprite shows its ass, we don't see that
Treecko
Pros: Plenty of STAB attacks, all the drain attacks, leaf blade, good sweeper
Cons: Its evolved forms don't learn the drain attacks and Sceptile's mouth looks weird
Torchic
Pros: Fire and Fighting, nice design, removed rock weakness, high attack and special attack
Cons: Blaziken sounds too angry in the anime, defense sucks
Swampert
Pros: Water and Ground sounds nice, no more electric weakness, waterfall good
Cons: 4x weak to grass, big and slow
Turtwig
Pros: Grass and Ground woot woot, good tank... not really, nice STAB moves, earthquake at lvl 32
Cons: Something's up with its base stats, 109 attack and 56 speed, WTH is up with the tree sticking out
Chimchar
Pros: Nice speed, attack and s.atack, but still out classed in attack and s.attack by Blaziken
Cons: Major copy of Blaziken, what's it doing to its ass, crap Hp and defense
Piplup
Pros: Cute little guy, penguins rule
Cons: Don't like its dual typing(not sure about everyone else), evolutions are ugly
So in the end I think I'll go with Torterra/Turtwig I don't want a pokemon with a tree sticking out on its back side