After six weeks, there are only two undefeated teams left in the NFL. The Denver Broncos and Kansas City Chiefs have emerged as the best two teams in the league. But which of them is the better team?

The obvious choice is Denver, given its offensive firepower. Peyton Manning leads the league in virtually every passing statistic for a team that is averaging a mind-blowing 44.2 points per game. They are stacked at every position, and are doing enough to get by defensively despite not having their best defensive player, Von Miller, do so much as take the field thus far.

However, Kansas City is a massively talented squad in its own right, leaning heavily on a loaded defense to get wins thus far this season. The team is allowing just under 11 points per game and leads the AFC in turnover differential at +12. The biggest criticism of the Chiefs is the quarterback position, but Alex Smith is doing a good job in his own right, throwing seven touchdown passes and only three interceptions so far.

So, which of these undefeated teams is better, the Broncos or Chiefs?