SF- Federer-Djokovic- Djoker is playing really good whole tournament, except few games against Dodig- who was himself playing great and lost that 1 tie-break - and 1 set he is really great and all other opponents he outplayed by far was better in every match. So the question is how will play Roger? is he capable play such good match like against Wawrinka or will he struggle like with Robredo- lost 1 set to Robredo - that is really bad if he want with that form go past in FORM Djokovic- so hard to say still favouritte is Roger but this is like 55-45 for Roger. 2.SF Murray-Ferrer- there is nothing -no advantage for Ferrer- they played 2 matches on Hard both have von Andy- last time WTF 2010 in london 2:0 for Andy pretty easy match- i can´t imagine Ferrer on best of 5 go past this Murray- who is playing really well- so i would say Final will be Murray- against we will see- and in final it will be 50-50 because if Roger- who knows how he will play in final and how Andy will this time play big finale, and if Djoker- than both Andy and Djoker are in form so it is close between them. But I am sure Ferrer has 0% chance to win AO- nothing against him he is really good- but compare to those 3 guys on best of 5 match i can´t imagine him to beat 2 guys in a row- Murray, Roger or Murray , Djoker.
Based on the form they have displayed in this tournament I would be willing to go along with this although perhaps I would think that Ferrer should get a set off Murray. A potential Murray-Nole final would be so hard to predict as they have hardly played each other recently.
It would be a very memorable slam though if Ferrer were able to upset the odds and beat Nadal, Murray and Federer/Djokovic in succession to win the title.