Since beating the Elite 4, I've been mostly just rolling with four main guys on my team (Greninja, Blaziken, Venusaur, Garchomp), but my Greninja and Blaziken have hit the level 100 mark, so that may be changing soon. Anyway, here's my basic team:
And here's who I beat the Elite 4 with the first time, just because I like the look of the other ones people posted.
I've gotten a few good things like a Dieno from Japan and a level 1 Dratini with close to perfect IVs, but then there's the plethora of Goomys I've received. I typically try sending out egg only Pokemon or something that seems worth getting though, so even if I get a Bidoof, I don't feel as annoyed since I made the other person happy and/or upset that they sent me something shitty, ha ha.
Ubisoft picking up WWE would be the most interesting option, the gameplay possibilities are endless with that company in charge. Saint's Row would probably benefit the most from an Ubisoft pickup too, but I'm thinking EA is gonna lay all it's cards on the table to acquire that one.