Roy is going to utterly smash Kongo, whose style matches up perfectly for either a Nelson KTFO or the usage of his BJJ. Seriously, Nelson by whatever way he wants. Kongo will eventually get clipped on the feet as there are holes in his striking and if he looks to take Roy down and GNP him, I see him being sorely outmatches and subbed. Kongo can try to bully Roy with his massive size, but I think this is a terrible matchup for him.
As for Vinny/Davis, I think Davis SHOULD win this fight, however if this gets to the ground there are maybe two other MMA fighters with as superior BJJ as Vinny and I think he subs Phil. Couple that with the HARD TROLLING Vinny has been doing and all that Team Lloyd Irvin drama, I think Phil may be coming to this fight with a few major distractions. Both of these guys are large LHWs and Davis will probably look to keep this standing, however if Vinny gets hands on him....WATCH OUT. Davis is the fave, but wouldn't shock me in the least bit if Vinny gets a slick submission.
MY MMA RANKINGS
HW Velasquez Cigano Werdum Cormier Bigfoot Barnett Mir Browne
LHW Jones Machida Evans Hendo Davis Goose Teixeira Shogun Mousasi Bader
MW ASilva Rockhold Belfort Weidman Jacare Okami Kennedy Consta Belcher Boetsch
WW GSP Hendricks Condit MacDonald Diaz Maia Fitch Kampmann Ellenberger Pyle
LW Bendo Alvarez Maynard Melendez Thomson J.Miller Diaz Pettis Chandler Grant dos Anjos
FW Aldo Mendes Curran Lamas Frankie Zombie
BW Cruz Barao Fernandes Faber Moraes