Kittles PFF grade is off the charts but the advanced metrics don’t line up with your assessment. In fact neither was the best tight end here. But when you also look at simple yards per game and yards per catch which eliminate missed games from injury, Kelce was better. With multiple game injuries to nearly every other starting Chiefs skill position player really make his reliability this year a massively important measure of his value as well. Both great bit there’s no way you can say Kittle is clearly better without evaluating blocking and their roles there. https://www.footballoutsiders.com/stats/te/2019