Top 15 quarterback units of the Super Bowl era

Quarterbacks. They are important in football. Consider this: Without at least one of them, the center's snap would just bounce around deep in the backfield, where it'd go for a big loss or be recovered by the other team. Either way, not a winning proposition for your team.

Over the decades, some of the NFL's best teams have so thoroughly grasped the need for good quarterback play, and some didn't stop at getting just one. Sure, it occasionally led to hearty local sports radio debates over which one of those QBs should be taking first-team reps, but it also helped land some Lombardi Trophies.

Here are the 15 best quarterback units of the Super Bowl era.