The only guys I see really pulling off a stable are Edge and JBL. Edge and La Familia is about to run its course, but I really see JBL sliding into the Raw GM role soon. Right there, have him hire out guys like Khali/ Umaga/ or maybe even Kane as his muscle, throw in a tag team like Rhodes and DiBiase..you could have something akin to the Corporation, with JBL as the mouthpiece and the main eventer. Nobody draws heat like Bradshaw, and that is what you need as a true faction leader. Take a look at the most sucessful stable since the Horsemen..the NWO. The origonal NWO that put WCW in the forefront and almost ran the WWE out of business. They took the most well known babyface of the modern era, turned him heel while also working an invasion angle. Hogan, Hall, Nash, and Waltman.
This drew the most heat I have see in 20 years. Every week at the end of Nitro, the ring would literally be covered with trash thrown in by a pissed off crowd that was almost on the verge of a riot. DX never drew this kind of heat...Evolution never drew this kind of heat.
And I know the NWO eventually got watered down with over-booking and every one knows tha story about how it was dusted off time and time again, but the original NWo from 1996 through 1997 was the model that every stable that has formed since has tried to follow.
My question is...who can draw that kind of heat now? Orton is hated, but his character is too much of a loner. Edge can draw the heat, but a lot of that comes off the fans disdain of Vickie. It's gotta be JBL, he's the only heel who's good enough on the mic to pull it off. So my vote is:
JBL and the Board of Trustees.
Bradshaw/Kane/DiBiase/Rhodes