fwiw ubers w/ a handful of bans would be about as diverse a meta as you can get w/o it being so diverse that people whine about matchup (see about 50 Pokemon would be 'OU' with the new usage stats). I am currently holding my SECOND tournament in the format here http://www.pokemonperfect.com/forums/index.php?threads/pp-oras-ubers-tournament-2.3293/