Fedor would have absolutely murked Shogun, Gus, Vera, Phil Davis, Belfort, Texeira, and most definitely Matt Hammill.
But DC... DC would have wrecked him.
Jones would have beat everyone with the exceptions of Randleman, Hunt, CroCop, and probably Schilt.
Schilt would have knocked him out cold.
Rumble would have KO'd both of them stiff, though, tbh fam.