Who Will Get 2nd?

With the way he's been playing in the majors this season, as far as I'm concerned, it's a foregone concusion that Tiger will take the PGA this week. So I'm wondering who will finish 2nd? Or, if you want, who has the best chance at the upset?

We all know if Vijay can make a putt, he's probably got the best chance of the lot, and with Retief's win yesterday, he's probably gained a little confidence back. As for a wildcard, I've not been following golf very much lately, so I would have no idea... maybe Roy McAvoy?