Back on Selection Sunday, before the official madness began, both North Carolina and Gonzaga weren't full-on locks as No. 1 seeds like fellow top seeds Villanova and Kansas. Duke and Arizona, two teams with earlier-than-expected NCAA tournament exits, were then in the mix to steal away a top seed.

Here in April, the Tar Heels and 'Zags — both No. 1 seeds — are the only teams still standing.

While North Carolina is on a revenge quest from last year's heartbreaking loss to Villanova in the title game, Gonzaga played much better than any team in Saturday's Final Four games and hardly looks like an underdog (although Las Vegas has UNC as a two-point favorite, just like it was last year against Villanova). Which team has the edge in the national title game (9 p.m. ET, CBS) on Monday? Here's a look at the key areas.