None of them. I'd like to start fresh and train all new Pokemon. I'd be bored if I beat the game too quickly with an old team, and by raising a new team I'd be able to re-learn battle strategies (ha ha, after a year of non-play I got into my LeafGreen yesterday and couldn't remember if grass was good against water or not xD). I guess this would be a disadvantage when considering Wi-Fi battles, but I don't think I'll have too much time for that, anyway :<