For one, when Federer dominated the game, we always expected him to win it. In his prime, it was always expected that Roger would win AO, Wimbledon and US Open...and some years maybe only Wimbledon, US Open........this year however.....Roger loses to Rafa in the final, wins Roland Garros and Wimbledon and loses to Del Potro in the US Open final. As defending champion, Rafa is clearly going to be a favourite, as probably the greatest hardcourt player ever, Roger is going to be a favourite aswell.....Del Potro, having one the US, beating Rafa and Roger back to back is also going to be a big favourite, and then you have Murray and Djokovic. I think the Aussie Open will be intriguing and that it will tell alot about the current crop, especially rafa, roger and del po....will Rogers semi-final streak eventually be beaten?? Could you imagine Federer losing early at a slam, like in the 3rd or 4th round?! That hasn't happened for 5 and a half years now. Also, will the defending champion be "fully recovered" and start mounting a challenge to take back the no.1 ranking. And will Del Potro prove to be a "Djokovic" in the sense that he has only won 1 slam, can't cope with the pressure etc. and will fall by the "wayside" and maybe grab 1-2 slams in the future which Djokovic is capable of. And then, what of our little friend, Andrew Murray. Will he finally beat his critics and win a slam? The 2010 Aussie Open is certainly going to be intriguing.