I'd be interested in seeing how it would play out if Malcolm and Denise were both in the final 3. They've essential both gone through the same thing this game. Allied from the beginning, lose every challenge, go to a different tribe, merge and get back together. They've both played very good social games, and both been very good physically. If they were both in the finals, I feel like Malcolm would win, but not necessarily because he played a better game. They've basically played the same game. The biggest difference, I think, is that Malcolm may have had a bigger target on himself for being so strong in challenges. But with regards to that, he really hasn't done any better than Denise.
Anyways, I would be pretty surprised if either of them didn't win. Lisa is a flake with very little strategy, Skupin's strategy has been no more than 'go with the flow' and has been a non factor in challenges, and then there's Abi...