3* MacDonald (-125)
Sort of missed the boat on this one, as MacDonald was the underdog a few weeks ago, oh well.
Quarry has not impressed me one bit since returning from knee surgury following his loss to Rich Franklin back in '05. He was getting beat pretty badly by Pete Sell, but managed to knock him out in the 3rd. He beat Kalib Starnes in quite possibly one of the most boring fights in UFC history, with Kalib running around the octagon for the entire duration, not engaging. He was then destroyed by Demian Maia within two minutes by way of RNC @ UFC 91.
MacDonald has had a lot of ups and downs in the UFC thus far, with impressive wins over Joe Doerkson twice, and submission victories over Leben, Herman, and Lambert. Most of his losses are from top middleweights such as Rich Franklin, Yushin Okami, Demian Maia, and most recently Wilson Gouveia. So I definitely give the experience factor to Jason.
I think the stand-up will be pretty even, but when the fight eventually hits the ground, MacDonald will have a clear advantage. I predict that MacDonald submits Quarry in the 2nd round.