Personally, I think Rothwell will take it. Remembering the Cain fight, he took a savage beating, and even though he was done, gave it his all. Plus Rothwell is a pretty good striker, from watching other fights of his. Cro Cop will only win with a flash KO kick; is my belief, but then again...we won't know till it happens.
On nother note, I hope he isn't done, and I hope he redeems himself. But my money and respect is still for Big Ben Rothwell.