My favorite Gen. 2 Pokémon in general are: Typhlosion (it's got Charizard's stat total and no x4 weaknesses), Meganium (AncientPower, Swords Dance, and Earthquake on a Grass type Pokémon? Genius!), Wooper/Quagsire (despite the obvious x4 weakness, the HP is great after all, while learning Amnesia.), and even Elekid, Smoochum, and Magby (tied, because all three of them are equally helpful in the Little Cup in Pokémon Stadium 2). The following Gen. 2 Pokémon are also great, because they help with making trade-back teams for Gen. 1 Pokémon: Larvitar, Marill (yes, that overrated Water-type formerly known as Pikablu), Chikorita, Ledyba/Ledian, Hoppip, Murkrow, Smeargle, Tyrogue (Hi Jump Kick Hitmonchan, anyone?), and Sentret.