I personally am hoping that Nick doesn't do the same thing he did with Sanchez, Fitch, Koscheck and just flat-out avoid these match up of guys, but Matin is good match up; for both of them. Both are about in the same boat; both are close in rankings, just on the horizon of getting knocked out of top ten if they get stopped by the other guy imo.
I'd go for Martin because I'm bias to guys who utilize more tools, but in all honesty Nick has more than enough chance to beat Kampmann; standing or on the ground. It would be interesting to see who gets their job done.
Don't be scared this time homie, lets get this one crackin'