I like all 3, sure the Firepig is the weakest but all Gens had a weaker starter Pokemon (Bulbasaur gen 1, Chikorita gen 2, Mudkip gen 3 and...well ok maybe not in gen 4...my opinion anyway. Not to say their is nothing wrong with Bulb, Chik or Mud, it's just they are the weakest in my opinion.)
But he still looks okay, and i have to say this is the strongest Grass type ever! The design is awesome, The water one is awesome as well, but i probably won't choose it because i like to see what other water Pokemon are available.
Im guessing the types here...
Grass/Poison(Again -_-')
Water/Ice
Fire/Dark