It's not MMA. It's hockey. Size and strength are nice, but only a part of the puzzle, when defending. I'm giving Spurgeon a pass last year because he was playing on one leg(as someone who is no stranger to hip problems, I have an idea what he was going through just to stand on the ice,nvm skate), but prior to that he and Brodin are clearly our best defenders. Their combination of skating, skill, smarts, and technique are simply superior to what else we have, Faber excepted. I've lost track of how many times they have made fantastic defensive plays saving goals.
Middleton is probably our best old school crease clearer, but he has slow feet, which prevents him from getting to players as quickly as Brodin and Spurgeon do. Just think of the Dman as models of cars. Middleton is a clunky old pickup, Brodin is a luxurious, fast, but somewhat anonymous Lexus, and Spurgeon is a Cooper. All have their place.