My immediate reaction is to kick, of course...
but against KC, on the road... If KC gets the ball first and scores, that crowd will be going absolutely ANIMAL and you're immediately in a deficit on the road in a hostile environment against a team that led the league in sacks
On the other hand, the crowd is going to be animal at the kickoff anyways.. so if you receive, you're dealing with that initial opening madness of the crowd who just got into their seats after hours of tailgating, drinking and pumping themselves up. So you could kick and go on defense to start it out, BUT YOU BETTER ****ING STOP THEM ON THAT OPENING DRIVE! Plus the added benefit of getting the ball to start the half, after you've had 2 quarters to see what they're throwing at you and make adjustments.
There really is no right or wrong answer, there are pros and cons to both choices that ultimately come down to how the players execute anyways