I'm going to unhumbly brag that I'm a really good FIFA player. I've won division 1 in a single attempt for 4 or 5 years running.
I've only played the demos of both, but FIFA this year is garbage, and PES is without a doubt the game to get. And I've never played or owned a PES game before this years demo.
Someone complained about CPU having crazy possession in FIFA, in PES they'll actually play like the other team. When you play Juve the knock long balls to their target strikers. In FIFA the cpu just plays the lamest most conservative passes, and really plays like a computer.
I'm waiting for it to go on sale then investing in PES, but I play the demo almost nightly
(broke student FTL.)
This years FIFA is garbage, if it's on sale and you save a few bucks, it doesn't change the fact it's still a waste of time compared to PES.
My only issue with PES is the skill moves. Not sure if the game just sucks for it, they're difficult to do in general, or I'm just doing something wrong. But I don't use them at all which takes away from certain situations where I wanna put on some step overs or do a roulette.