Tito Ortiz - Not the most eloquent guy,but he was obnoxious,naturally can get under people's skin and knew how to draw attention to make money fights. Alot of people tuned into see him lose,and people who secretley want to be loudmouthed arseholes lived vicariously through him in the good times.
Jon Jones - Jones cant own up to all the shit he does,even Usada would dump him then,but the fact hes allowed to roid and get away with it,makes this sociopath a villain wether he likes it or not.
Brock Lesnar - This guy also has a natural ability to get under peoples skin,and the UFC is more than willing to spread their legs anytime for this guy. Similar to Tito,in that he know how to create a scene,but he is much better and more successful at it.
Josh Koschek - Just has a hittable face,knows how to get under peoples skin better than anyone. Has the style to make people boo him. Born Villain.
Chael Sonnen - Has an amazing understanding how to rile people up without having to get physical,or even show any emotion...Knows his audience,subtle pro wrestling tactics
Ben Askren - When you are undefeated just by outwrestling everyone,possess a gorgeous mane of hair like that,and land inconvenient truth bombs everywhere you go,the "he terk his jerbs!" drunk crowd just cant stand it.
Bisping - works really hard on pissing anyone and everyone off. Tremendous.
Tank Abbot - The bland ufc single digits fighters really looked more bland than ever when this guy burst on to the scene. Didnt respect anything and gave hopes to the fat bar fighters everywhere. I wonder how much Black Belt Magazine must have hated this guy.
Rousimar Palhares - I dont think he means to be a villain,hes just too daft to realize that when a guy taps you let go of the fucking hold.
Gilbert Yvel - punched out a ref,tried to gouge out Don fryes eyes.