Well this is a long awaited release and seems to have more expectancy from fans than the previous two releases.
FIFA 08 stole many fans away from PES and 09 tweaked the gameplay. Manager mode however was overlooked for more online modes such as be a pro, etc.. .
FIFA 10 is a much improved game engine, the response and mobility of players is outstanding. Players stay on their feet, jostle for the ball and dribbling is much more fluid and easier to do.
Turning defenders and maintaining possession is better, crosses are far more potent and curl in, perhaps a little too much. There is a touch of over doing it with some aspects such as the physicality of bigger players and afore mentioned crosses being wickedly whipped in by all player types. However this is a game that moves like never before.
Manager mode has plenty of room to improve however, EA had promised a focus for this mode and so far the EA forums are littered with errors and bugs. EA are working on updates to correct this we are told. MM mode is a huge draw and if you are a fan wait till the updates are released or you may be dissapointed.
Online aspects such as virtual pro and live season 2 will draw in the online players. These modes use an ever impressive presentation.
Weather is included now as well as quickly taken free kicks and the hugely enjoyable custom set pieces where you design your own set pieces to use online or in any mode.
All in this is the best FIFA so far, it has plenty of fixing and will benefit from a month or two of patching from EA.
A good almost great game just shy of the full 5 stars beacause of the issues with Manager mode.