Andy's UFC Undisputed 2010 review is on-line today, based on the PS3 version it stands up pretty well it seems.

One welcome improvement is the ability to mix your martial arts a little more. Where as the previous title restricted you to just two forms, 2010 lets you be a little more experimental, and if you create your own fighter from scratch you can even mix the move set you favour. This allows you to cherry-pick the best the best the martial arts world has to offer, and can make the game a whole lot more fun.