Jasper Kazai
Ice Cold Milk
If you mean the quickest from the beginning of the game, I'd say that your best bet would be to migrate onto D/P/Pt and then trade to HG/SS, since you can trade between the two once you get two Pokémon.whens the quickiest i can migrate my pokemon from a gba game?
If you're talking strictly within HG/SS, then you won't be able to migrate until you reach Fuchsia City.