We've seen Nick fight at 160 a couple of times. He wanted to got to LW, then just changed his mind for some reason. He is a top WW, but would only lose by getting taken down and decision... outside of maybe BJ.
at LW he could really tear shit up.
I see him outclassing Frankie if they fought, his reach would be a lot to deal with and his style would fluster frankie. Frankie could get him down, but would be in a world of problems if he stayed down there for too long... Although Frankie is more of a guy who plays it safe and gets the takedowns to land points rather then really mount an offensive. He is always good at coming up with a gameplan.