Same, man. I bought PES last year cause I thought it was a better game but Konami fucked it with the data packs and they never patched the refs. Bought FIFA two months later and played it a lot more. I think the PES demo is better than what I've played of the FIFA demo so far (though I did dislike both at the beginning). But I'm still probably going to get FIFA because I need a football game to scratch the itch and I'm not trusting Konami.
I'm in the exact same boat. Bought PES last year based on the demo and the hype, then it fell flat for me after about a week. So I picked up FIFA and played the shit out of it.