Bisping takes this by bike-riding decision with his superior cardio and violence avoidance, unless he gets lost in the fight and I'll explain a tad bit further here.
I've noticed, in many of his fights(Hendo/Wand/Rivera/Stann/Kang/Rivera/Belfort), Bisping puts himself in danger by compromising his mobility and footwork, deviating from his gameplan. When Bisping gets forced backwards, plants his feet, gets caught against the cage(he has good clinch though) or gets suckered into a big exchange, he can throw a pick and show his opponent too much striking-wise and it has cost him. Bisping's key is fighting smart and neat/tight without much room for error and he's known to slip and get cracked.
Bisping has great TDD, so I'm cautious as to whether Munoz will be able to score the GNP. If he can't, Munoz can take this in the first or second, but I think he's going to have to walk Bisping down and look to go yard and headhunt if the takedowns aren't available.
MY MMA RANKINGS
HW Cain JDS Werdum Cormier Barnett Bigfoot Browne Miocic Napao
LHW Jones Goose Evans Texeira Davis Hendo Shogun Manuwa
MW Weidman ASilva Belfort Jacare Machida Rockhold Munoz Kennedy Bisping
WW GSP Hendricks Condit Lawler Maia Kampmann Rory Ellenberger Askren Lombard
LW Pettis Bendo Alvarez Chandler Grant Gil Thomson Diaz J.Miller dos Anjos
FW Aldo Mendes Lamas Frankie Cub Lentz Kawajiri Zombie Elkins
BW Barao Cruz Faber Bibiano McDonald Moraes Assuncao Wineland Dillashaw