I've been saying it for almost 8 years, Tony Romo is an elite quarterback who plays at the highest level, and a SB ring would safely secure him as the greatest or second greatest Dallas quarterback that has ever lived. Of course this is not a popular opinion among Cowboys fans, or NFL fans for that matter.
Surely fans will debate Aikman as a better QB, but having been a witness of both players, Romo is just a better quarterback, period. Aikman was blessed to have a great team in a non-salary cap era, which meant an easier path to the big games. Not to take anything from his greatness, I like Romo better. Ultimately ESPN is right; numbers don't lie.