I have Pokemon White. In game, I use:
Jumpluff - Sleep Power Scout
Golurk - Tank
Emboar - Badass physical sweeper
Suicune - also in my competitive team, a substitute calm mind sweeper
Galvantula - Special scout sweeper
Nidoking - Sheer Force abuser, this one is actually EV trained, but I don't use him much against other players due to sub-par IVs.
Chillaccino - Anti-lead scout
Excavilier - Steel-type wall.
Suicune - Again, a calm mind sweeper
Sharpedo - Mid to late game sweeper (this one has speed boost ;P)
Mismagius - Special wall
Zapdos - Physical wall, mainly there to cover chillaccino's and sharpedo's major weaknesses.
I can't remember the levels, since it doesn't really mean much to me.