The thing Murray does have over Hewitt though is he has had a much longer prime. I would say he has been in his prime since U.S Open 2008 (with 2014 excluded as a non prime year of tennis). Hewitt had only 4 prime years really- 2001, 2002, 2004, 2005. So if one argues their levels are roughly the same, Murray could be argued to be considerably better then in the sense he maintained that level a lot longer, now going on about twice the time. Largely due to injuries and other bad luck for Hewitt, but that is tennis isn't it, them the breaks, Connolly would probably be the GOAT today (man or women hands down) with like 35-40 slams without her riding accident. Particularly IF (and it is a big if at this point) he backs that up with more slams than he currently has, atleast a 3rd, preferably a 4th.