Which madden game? As far as I'm concerned. Madden 25 on next gen is the best playing madden of all time. I break that game out all the time just to get my fix in. The AI has no glaring problems and the game is smooth and I don't notice any bugs at all. Zone coverage seems to work too. I wish the Madden 25 engine was utilized for years after that.
My favorite Madden of the past was probably Madden 10 before Madden 25. I love that game. Best soundtrack ever too when they used the Sam Spence "NFL Music" They need to bring that back and now!