So here's what I'm thinking of using for my BW2 team.
Ampharos/Magnezone
Thunderbolt, Signal Beam, Power Gem, Focus Blast
Thunderbolt, Flash Cannon, Signal Beam, Volt Switch/Explosion
Gengar
Shadow Ball, Psychic, Ice beam, Thunderbolt
Arcanine
Flamethrower, Wild Charge, Crunch, Outrage
Starmie
Surf, Ice Beam, Thunderbolt, Psychic
Sandslash
Earthquake, Stone Edge, Slash, Brick Break/X-Scissor
Flygon
Dragon Claw/Outrage, Earthquake, Fly, Crunch
I'm EV training Starmie because it's shiny and flawless. Can't really decide on using Ampharos or Magnezone though.