1. Anderson Silva
We thought Silva's next challenge would come from Georges St. Pierre, but it appears that won't be the case. Instead, look for Yushin Okami to finally get his title shot, likely in the main event of UFC 132 in July. Media and fans are already clamoring for Silva to move up a weight class and face Jon Jones for the light heavyweight title. Should it come to fruition, that would easily be the biggest fight of 2012.
2. Georges St. Pierre
St. Pierre will face Jake Shields at UFC 129 next month. There was talk of St. Pierre abdicating the welterweight throne with a win, but that train seems to be leaving the station. Staying at welterweight might be better for St. Pierre's legacy, and it's not like the fans will ever tire of seeing him destroy challengers.
3. Jose Aldo
Aldo finally makes his UFC debut next month with a title defense against Mark Hominick. UFC fans will be pleasantly surprised at just how awesome Aldo actually is. Hominick is the best striker Aldo has faced thus far, but he'll be no match for the Brazilian wunderkind.