What's everyone think about Leben VS Simpson?

Aaron proved in the Lawlor fight that he has a lot of holes in his striking . . . but he also proved that he has a pretty excellent chin. Leben might be able to put him out if they get into a stand up war.

Simpson's wrestling will obviously be much better and he may be able to control Leben and get a decision, but I think that at +285 Leben may be worth a small play.