Honestly, I used to be a stickler for PES (Pro Evolution Soccer) until a few years back when the FIFA series became better in gameplay and really, everything else. FIFA 10 was the class of all soccer video games, despite a couple of nagging flaws.
I'm trading my copy of FIFA 10 for FIFA 11 next Tuesday. Haven't played the demo yet, but it's supposed to have a more realistic passing system and from what I've heard/read, it's surely an improvement from 10.
It appears that I'll buy FIFA 11 and rent PES 2011 (comes out a month later methinks), unless it proves to be a worthwhile purchase.
Anyone else getting FIFA 11? C'mon, don't be shy.