I got on pretty late to the BW2 bandwagon, but I got the game for Christmas and beat the game a few days ago, and thought I'd share my team.
Lv. 56 Serperior (Freddie) @ Overgrow w/ Miracle Seed
- Giga Drain
- Leech Seed
- Leaf Blade
Lv. 55 Lucario (Emanuel) @ Steadfast w/ Scope Lens
- Swords Dance
- Me First
- Close Combat
- Bone Rush
Lv. 55 Arcanine (Richard) @ Intimidate w/ Leftovers
- Flare Blitz
Lv. 55 Flygon (Gaea) @ Levitate w/ somethingorother
- Dragon Claw
- Earth Power
Lv. 55 Ampharos (Marie) @ Static w/ Brightpowder
- Signal Beam
- Cotton Guard
Lv. 55 Golurk (Asimov) @ Iron Fist w/ Rocky Helmet
- Ghost Punch
- Heavy Slam
Yeah, the movesets aren't the greatest, and I didn't grind that much for the E4, but I made it through pretty easily, especially Iris, as Richard tore through 2/3 of her team with Flare Blitz + Outrage. I would have had Reversal in place of T-fang, but idiotically replaced it, and am unable to remember it through the move tutor due to it being a Growlithe exclusive move. I also did have a Sigilyph (Chinook, Lv. 50) that I had used for a while, but was replaced with Asimov when I found him on Victory Road. If you want, you can try and guess the reasoning behind all of their names, but some of them are pretty hard.
Coming soon to the Kanto Safari Zone...