I think peak 2012 Murray/13 Murray probably beats Philippousis.
Probably beats Safin because Safin was gassed I think by the time he reached that final, plus he plays the sort of way I think would drive Marat nuts.
I think he has minimal chance against 2004 Roddick.
Toss a coin on the Hewitt one. Murray's not going to play aggressively enough to blow Lleyton away the way that Roger did, so who knows what would have happened.
Can probably beat 2005 Roddick as he played most of his semi final on the Saturday.
Don't like his chances that much against Agassi, even if the AA was running on fumes by that point, if he pushed peak Rog that close then I'm sure Andy would struggle (even if Andy maybe thrives in the adverse conditions a bit more than Federer doe... Used to)
Baghdatis another totally out on his feet opponent, though his record against him is hardly spotless, so who knows. In 2012 they played a hell of a match at Wimbledon and that was Baggsy long past his best, Murray rarely had it easy with him, but given the circumstances of this final I'd probably give him the edge.
No chance against Nadal at Roland Garros, at Wimbledon... I mean Rafa beat him there in 2011, now granted Nadal's game had evolved by that point to perhaps be a more efficient grass court player than the very raw version in 2006. It'd be close, I think. I think it's a real shame we never got to see that peak first Lendl era Andy match up with Rafa. Would have been something to see after the 3 straight slam defeats in 2011.
Maybe give him an edge against Roddick in New York, but not much of one. Baby Muzz knocked his ass out of Wimbledon that year, so I'm sure peak Knight of the realm could edge him at the US Open. To me I just always go back to their 09 Wimbledon encounter when I think of this rivalry, and how much better Roddick was when it mattered most.
As massively impressed as I was by Murray in 2012/13, and as leaps and bounds better as he was than he had been previously (or was after) I still do think there was a hint of illusion about some of the biggest stuff he achieved (Would be very interested to see how he fared against Del Potro in the 2012 Olympic semi or 2013 Wimbledon semi. They only played one match during peak Murray period, and Delpo won it pretty handily in the end). Anyway, I probably have him at 6-4 or 5-5 here.