If all you want it for is playing Madden, then I'd get it because it's the cheapest. If you are looking to play Madden or other games online against other people, PS2 and XBOX are the better options. They also have more games.
I have XBOX and think it's the best because they get almost every game (the good ones at least) that PS2 has PLUS kickass games like Halo and Halo 2.
New York Yankees: 2005 Offseason
Dallas Cowboys: 5-8
PrimeTime(baseball): FB Champion
PrimeTime (football): 10-4