Charmander -
Type: Fire
Evolution: Charmander > Charmeleon > Charizard

Squirtle -
Type: Water
Evolution: Squirtle > Wartortle > Blastoise

Bulbasaur -
Type: Grass
Evolution: Bulbasaur > Ivysaur > Venasaur

Note: Whichever pokemon you chose , your rival will chose the one that has the advantage over you.