If I had to choose three:
Favorite: Tiger, Cabrera, Jimenez
Hard to leave off a lot of other guys like Choi, Goosen, Furyk, Daly, and Weir.
Least Favorite: Mickelson, Scott, Spieth (I know i'm an awful person)
One doesn't often find Choi on a most-liked list, or a most-hated for that matter. It's a good choice, met him a few years ago and he's a super nice dude. His caddy at the time, Andy Prodger, gave me a couple Nike Platinum balls before they were on the market, just for the hell of it.
Now your least liked list? Mmm, that could use some work. ;)