I watched Porto v Chelsea last night and it did occur to me that Porto were playing PES (ping-pong passing) and Chelsea were playing FIFA (slower build-up play overall). I guess that means PES wins...
But in seriousness it did just reinforce that element of "neither game can do what the other one does".
I did play PES & FIFA immediately afterwards to see what comparisons I could draw from it, but immediately in PES I was running along through thin air in the centre of midfield and scoring wondergoals, and getting the ball taken off me when I'd pressed a button to move the ball on a second before, and having my defenders put on invisible paths I have to "snap" them out of - no different from any PES before it.
PES has potential, but it always has, and it never seems to get close enough to meeting it for me - but then, some people feel that way about FIFA.
On World Class with sliders, FIFA wasn't a million miles away and much more enjoyable - the goals always make me jump from my seat because you feel like you actually caused / scored them, whereas PES feels like the game decided to put your ball on a path to goal.
They're both just lines of code, but one makes me feel in control and the other makes me feel controlled.