OT: to answer the question I think Galaxy received one 11/10 from a small gaming magazine. I thought it was silly but if there was any game this gen that deserved it, it was probably Galaxy.
As for IGN's MGS4 review it's hard to say whether they did all that becuase they knew they had to after GTA4 or it deserved it. I think between GTA4 and MGS4 that of course Snake deserved a 10 more but I personally would like to think if GTA4 released after MGS4 4 that neither would have perfect scores.