Agree with most of your predictions except the semis and the finals. IMO, Murray makes the semis abd beats Djokovic again if Nole reaches as far (he has a tougher quarter) and Andy has a joke draw. Isner will not beat him.
BO3 is where Murray can take it to Djokovic better than anyone can and they both know it.
Nadal will beat Federer everywhere so yeah he gets to the final.
I am calling a Nadal-Murray final with Nadal taking the title.
If it is Djokovic-Nadal, Djoker makes it 8 in a row
"In my opinion he's the best player ever. When you play tennis, playing Federer is kind of a dream because you can see he does everything you would love to do on the court" - Fabrice Santoro
I see no evidence Isner is in the form to beat Murray(having never beat him before either), and Wawrinka's been focusing on clay recently. I don't see Fed beating Nadal or Nadal beating Djokovic. Murray vs any of the big 3 could go either way.