I would've agreed with the OP but after Djokovic smashed Ferrer to smithereens in the SF of the USO last year only to get crunched by Murray in the Finals, all bets are officially off. I don't care how good somebody looks in a prior match. Tomorrow is a whole different day.
Murray is no little 5'7" David Ferrer.
The last 2 Slam matches between Djokovic and Murray have been thrillers, going the full 5 sets.