Honestly, for me its way too difficult to predict the winner now !.. a LOT can happen in the 3 months time..however, based on the current form of players, i can think only of nadal or djokovic( assuming, players get no injury).
...my inner mind says Nadal might walk away with the RG 2012..

..
pressure will be on djokovic b'coz :
1. he's the Hottest player on tour now.
2. He's won all 3 other GS - ( Aus open, Wimbledon & US OPEN)..he would want to complete career GS.
3. He's trying to be the first man since______ to win all 4 GS in a row( if not in order)
4. He's already disclosed to everyone that RG will be his #1 priority..so i am assuming he'll be super-fit by then..
5. can't think of any other..

.although if federer wins, it would make millions happy( including me)
