The best pokemon team to have should be the following:

Blaziken-Overheat,Blaze Kick,Sky Uppercut,Dynamic Punch
Milotic-Hydro Pump,Blizzard,Ice Beam,Attract
Flygon-Solarbeam,Giga Drain,Dragonbreath,Earthquake
Latios-Luster Purge,Recover,Thunder,Psychic
Armaldo-Metal Claw,AncientPower,Earthquake,Rock Tomb
Cradily-Giga Drain,AncientPower,Solarbeam,Rock Blast

These pokemon should be trained to high levels for ultimate ownage to anyone in the Hoenn Region.