point taken, but there are soccer leagues too you know
the biggest one that most people care about being the premiership... back in the day some of the soccer titles used to just slightly change the letters of the players names - so you can still tell who it is. - not sure about nowadays, as im not a huge fan of football games - fps all the way!!
but it goes to show that not only one can dominate, and if it was better gameplay, why would you care if the name of the game had to be changed - just cus its called NFL (insert year here) doesnt mean its better to play than a generically titled one.