1. Ryan Tannehill, Miami Dolphins
It's close, but this would be my choice for the best performance by a rookie quarterback all season. It's the type of game that no one thought Tannehill had in him this fast. It's the type of game that should leave Dolphins cautiously giddy despite the final score.
Tannehill shows a lot of elite traits and put them all together against the Arizona Cardinals. He faced far more pressure than any game this season, but was uncannily accurate. He started to look like a veteran with great movement in the pocket. He changed plays and protection. He ran a little no huddle. He tried to quick snap the Cardinals. He ran a nice two minute drill. He avoided sacks.
All of the above bodes well for Tannehill's development, but his throwing ability sets him apart. He hit a lot of tough plays into tight windows. He always shows a lot of confidence in his arm. On one of his interceptions, the receiver fell. Tannehill's arm was hit on the overtime interception, but he did not get rid of the ball quickly enough when he knew a blitz was coming.
This was an electric game against a great defense. It's only one game, but it changed how I view Tannehill's ceiling this season.