Am thinking of using Cofagrigus...it's a very slow Pokémon but it's beastly
I'm even trying to avoid using the same types. Before HGSS, I always had the same types (heck, I did in HGSS too really except I used Murkrow into Honchkrow); Fire, Electric, Water, sometimes Grass, sometimes Ground, Flying & Psychic
I went down that road with Jp Black, but with White, I went down it with a twist. I use Bug-types now. Bug-types are cool.
This time, I really want to get out there. I never use Ghosts so Cofagrigus is a prime choice. Was thinking of using Waruvial but I have used Dark a lot recently.
That said, so many of the Pokémon I've thought about using have terrible speed due to the metagame shift