...Wow. Surprising. The non-Zuffa reference was interesting. Let's see...
Fedor vs. JDS HW---Always will be a Fedor fan but he'd get wrecked by Junior's ultra-vicious hands.
Mousasi vs. Jones LHW---Bones would trash Gegard inside of 2 rounds.
Shemenko vs. Anderson MW---one-sided, embarrassing 1st rd. beatdown by Silva.
Askren vs. GSP WW---St.Pierre would completely dominate and win on the feet or a pound out TKO
Alvarez vs. Henderson LW---Benson is much higher skilled, patient and would easily win.
Takaya vs. Aldo FW---Jose would win by a nasty KO or beatdown TKO.
Fernandes vs. Cruz BW---Cruz having great timing, wicked footwork and serious cardio, would completely outclass Fernandes.
...Just my opinion. Global rankings are different Zuffa clearly has the best of the best...