I disagree with this comment and heres why, the NFL should have every right to sell the license to use its image to one suitor if it chooses to do that.
All companies wanna make as much money as possible whether that be EA or 2K. The NFL was the greedy party in all of this. They decided to take on an exclusive business model. They have done it in most aspects of their business now. EA didnt buy the license because 2K was good, they bought it because the NFL decided to go exclusive so the only way to keep your game on the market is to be the highest bidder.
On topic: I think we would have 2 good yet unique football games on the market. 2K probably would have been a hardcore sim although it seems they are getting away from that a bit with its NBA franchise and Madden would have just been a tweener game.