I can't tell if Madden 10 is just Madden 09 with a 10 slapped on it or if it is new...
Madden 10 dosn't bring a turkey dinner to the table, it brings leftovers, by that I mean its almost EXACTLY the same as Madden 09. There are some new features but nothing that will pop. There are the new features such as improved blocking and gang tackles, which to say is very important for a football game, but there could be more and they could have spent more time on the short cutscenes during and before the game because that just feels like a rushed job to me.
The new features to franchise mode contain a Weekly recap of your team, decisions when players are injured and a bit more, but nothing large.
Probably one of the best things on the new game other then the graphics is the online play where you play as your franchise and battle it out with other leagues of up to 32 teams.
Now, like I said, Madden 10 dosn't bring alot to the table but it is definetly the best in the series.