Roger's my favourite player and I hope he wins the whole tournament. When assessing his greatness you can consider his total grand slams, his amazing consistency, the brilliance of his play, the seemingly impossible shots he makes but try not to bring up his record against Nadal.
Nadal v Federer (following all in favour of Nadal):
Overall: 23-10
Grand Slams: 9-2
Grand Slam Finals: 6-2
Well scoreboard says everything.
Roger Federer is still in the tournament :-D