"Omaha" versus "You mad, bro?" Super Bowl XLVIII between the Denver Broncos and the Seattle Seahawks is setting up to be a classic contest in which the surgical Peyton Manning will try to perhaps cap off his career and legacy against the brash--and best (ask Richard Sherman)--Seattle secondary that has smothered the league's best wide receivers all season long. Simply put, the league's top offense (Denver) will face the league's top defense (Seattle). Something has to give.