Comparing Belfort's and Jacare's performance against Rockhold...
I know this is technically MMA math, but it does show a level of fighting. Jacare is an incredible fighter and had a really close 5 round fight with Rockhold. Vitor, on the other hand, murdered Rockhold within 2-3 minutes I believe. What can that tell us about their levels?
Yes, styles matter, but that is a drastic difference in how they handled their opponents. Is Vitor that much more of a killer? Was it a bad night for Jacare? He did seem to tire, and Rockhold has good cardio.