At first I was appalled by the comparison but now that I think about it thats exactly how it went, only that we'll never know if Biggie trully set up Pac for the Quad studios shooting but we know for a fact HBK made the conscious decision to screw Bret over.
as some of the others posted here, recently info leaked that it was Jimmy "Henchman" Rosemond (if you get a hold of the documentary "Beef 3" he's on there. He use to manage the Game around the time Game and 50 started beefing. He also recently got arrested by a federal agency for BIG TIME drug and crime related stuff) who order the robbery of 2pac and that it was set up to make it look as though Biggie had something to do with it. One of the guys who actually participated in the robbery confessed that it went down that way.
So, in truth, the comparison should be Bret:2pac::Vince:Henchman::HBK:the guy who confessed.