I play on PS2 default rosters. I have tinkered with the sliders (in Franchise mode) the past 8 months but the CPU QB's constantly range from 35-45 completion %. CPU QB's used to also throw 3+INT's a game but lately that hasn't been an issue for me.
I can't seem to play this game for long because the gameplay is too easy. You can play zone the whole game such as Cover 12 because your defenders will tip everything or intercept the ball. I end up going back to Madden 2005/2006 for the PS2.
Also another issue with this game is the CPU receivers drop the ball as soon as they are hit or the defender is near him. It's like the receivers are a bunch of middle schoolers going up against NFL defenders. I know in real life they do drop balls or lose the ball as soon as they are hit but not as much as 2K5 portrays.
Offensively the game is challenging but realistic with the sliders I use.
Honestly Madden 2005 gameplay is amazing with the Madden Manifesto. Madden 2006 also plays great with slider tweaks. If the CPU QB's didn't constantly throw 35-45 completion % and constant 3-and-outs, I would play 2K5 a lot more.
I know the editor fixes some of the gameplay issues but then the sim stats in Franchise get all jacked up...
I remember before buying 2K5 how many were saying this is the best football game ever made. After I got it I was excited but the CPU offense is a huge letdown. Presentation wise, this is the best football game. Really feels like watching an ESPN game with all the graphical overlays. But the best football game ever? I would say no to that.