That defence is nowhere near good enough to compete with any PL all star 11 side.
I just think back to some of the most recent greatest United 11's and it smokes that in terms of player quality imo.
Van Der Sar, Evra, Ferdinand, Vidic, Neville - Literally every one of them would get in over that City gk/defence.
Scholes/Keane/Ronaldo/Tevez/Rooney in prime - All better than those in that lineup imo, right now anyway.
That's not even considering other teams all time greatest players, Bergkamp, Henry, Drogba, etc etc.
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Overall, they are playing some great football no doubt, but their defense is suspect still and Leicester could of scored a few themselves at least. They are a good team, but far too early to say they are as good as any of the greatest PL sides.