i played the demo and in a way feel that ea will be better. they seem to focus more on the pace of real life mma.
for instance, when transitioning from full guard to half guard, there is a battle that takes place allowing a period where it is uncertain that the transition will succeed or fail.
ufc does not have this aspect, and as a result, transitions are robotnic and repetetive.
i also feel that if one were to learn the art of mma fighting, they would learn way more from the EA style simulation than the ufc thq one.
in the end both games are meant for the hardcore mma fans, who will benefit the most from owning both. but if you dont have an extra 120 dollars lying around good luck making a tough decision!