I know I should be rooting for Tiger, everyone else is.... but I tend to go for Mickelson.
Of course... for me Golf isn't a sport where I have "a" favorite... like you do in Football, Baseball, etc. I'm the same way with NASCAR... depends on the standings, the day, lots of things. I will usually latch on to one, or two, and root for them but by the next tournament, race, I may go an entirely different direction.
As of this post Molinari is leading at -6... and he's actually one I know. These days, sorry to say, I know few of the golfers.
I think Poulter will be in the running come Sunday. Mickelson will fade... Tiger may just make a move.