HW : Tough one to call, but I say Frank Mir, or Cain. Neither should be underestimated.
LHW : another tough one, but Forrest Griffin.
MW : Evan Tanner, I mean come on. Its not fair to say Franklin is.
WW : Matt Serra. Just know that even though GSP wasnt impressed by Matt Hughes, he isnt impressed by you either.

LW : Frankie Edgar. He really doesnt get that much credit. I still think if he fought BJ again, we would see BJ win his 2nd championship in the division. I think it will be another close fight for Edgar and Maynard.
These being said, Bantam and Featherweight is not really fair to call, unless you go to WEC's belt. For Bantam, its gotta go to Eddie Wineland. And For feather, Cole Escovedo.
Reply if you disagree or if you had another in mind. But if you think about it, there really arent alot of UFC champions.
SIDE NOTE : I saw a news feed with the headline " Frank Edgar, most underrated champion of all time? " so I wanted to know what you guys thought.