Leafgreen:
Rai, the Pikachu. Lvl 16
Blast, the Wartortle. Lvl 20
Pidg, the Pidgeotto. Lvl 18
Prim, the Mankey. Lvl 17
Edit: I just arrived at Cerulean City.
Lol, my current team is:
Raichu, lvl 42
Blastoise, lvl 45
Hitmonchan, lvl 45
Primeape, lvl 44
Flareon, lvl 42
Pidgeot, lvl 40