Well favorite all time... team extreme (Jeff, Matt, Lita)
I think they would all be together still if Lita was not a slut in real life. She could of stayed with Matt and everything would have been fine and WWE would have never came up with the Edge storyline. (actually second favorite)
But seriously all time The Four Horsemen
All the ones they made it was a great concept and they played it nicely. Especially with Ric heading the group.
Right Now?
Have to go with Edge and his "family"
Edge, Vickie, Chavo, Edge-Heads
That has some good potential for a great stable.