As in, what do you think of as his defining strength? For Edgar it's his stand up with his speed, boxing and footwork. Rampage, it's TDD, chin, strength and boxing supllied by massive power. Bendo seems pretty general to me.
i think his mindset makes him more of what he is than any one particular skill. the guy can fight through tough situations, remain calm and come back attacking like a savage. if he gets on top he gets a really creepy focused stare about his eyes and will just keep punching, punching, punching until either you give up or the bell goes.. and then walk away fresh as though he'd just got out of bed
Confidence + Cardio/Pace People use the term cardio machine frequently but Benson really may be the prime example of what it is. PS. And let's not forget his athleticism and flexibility.
Also throw in toughness and durability , lets not forget this man went 5 rounds with pettis, ATE the showtime kick in the 5th , people don't give him enough credit for not getting KTFO out by it.