No...I played both demos and PES was an absolute farce so I bought FIFA base on it.
You cannot base your opinion on a game through a demo. They are not complete replicas of what the full game is to be. The last two-three FIFA's have had demos that turn out to not be like the full game. Not just by the limited amount of features on the demo, but the actual gameplay.
I have played the PES11 demo, and found it more enjoyable than the FIFA 11 demo, but bought FIFA 11 because I found it more fluid and a lot more easier. Even though I have played PES11 before - the full game that is.
Well really thats the main thing I can base it on apart from reviews....and I thought the PES one was utter BS and the FIFA one was great and I have not been disappointed.
Well, that's you and your side, but really, you should play both before you really call the other one utter BS or a farce. You may like FIFA, and that's understandable, but - play the full game.
... just saying.
Fifa is better. At least they use real team names.