IMO
Aaron Pico - Probably would be in the LFA at this point, he could probably stay on the UFC roster if they gave him favourable matchups.
Pitbull - In the mix with Volk, Max, Yair, Zabit, Ortega, Zombie and Kattar. Probably beats some of those dudes and probably loses to some of them. Would love to see him fight them though.
Emmanuel Sanchez - Imo could be ranked, I think he's very similar to Shane Burgos, so round about where he is.
Daniel Weichel - Top 30 kind of win some/lose some fighter
A.J. McKee - Not sure, loads of potential, but need to see him tested, certainly seems to have the ability to be top 10 or maybe higher, but I want to see him against someone who takes him into deep waters.
Caldwell - Would do okay, a little bit one dimensional but excellent at that one dimension. Probably just outside the rankings.
Henry Corrales - Would find life in the UFC very tough I think, might get the odd win, but I think he'd be around the bottom of the division and would get cut before too long.
Daniel Straus - Hasn't looked the same since that motorcycle crash. I don't think he can beat any UFC fighters at this point.
Adam Borics - Has the potential to be a UFC fighter, but looked tentative since Caldwell wrestle fucked him. FW isn't an especially wrestler heavy division in the UFC so, so I could see him sticking around. Not sure he'd ever be ranked, but could have some fun fights, kind of like a more striking based version of Amirkhani.
Pedro Carvalho - Would go 0-4 and get cut imo. Gets smashed by pretty much anyone in the UFC.
Mads Burnell - Would do fine, not sure why they released him in the first place. He was beating Arnold Allen for most of their fight. Top 30.