point n.1
you are comparing first person shooters from two different machines, on one, the ps3, japanese and classic console gaming sells more, on the other, the 360, shooters sell more. the end.
point n.2
quality indeed does not equal sales, if that were true Final Fantasy XII would have been the best selling game of all time.
point n.3
I just read man-bear-pig's thread and objectively, due to the vast difference in sales and the subjective difference in quality being pretty close, I have to say that pezus' thread is much less of a flame war attempt than man-bear-pig's
Both quality games; difference in sales, not so great.
Forza total sales for this gen: 11.53m
Gran Turismo total sales for this gen: 12.08m
Both quality games; difference in sales, kinda big.
Killzone 2: 2.87m
Halo 4 (estimated LT sales based on a secret formula): 10.9m