Pokémon Renegade Platinum
This ROM hack I started recently lets you collect all Gen I - IV Pokémon. The game is also more difficult. For example, the Elite Four are going to have teams in the 70's - 90's (or so I've heard). Gym leaders and trainers have greater variability in their teams.
Do you have a favorite competitive team of six Pokémon you'd use? What types or moves would you use to fight any of the first 493 Pokémon?