I think comparing Butler and Ryan this year is difficult. If you go by the pure numbers, Ryan has been better. But they're tasked with far different jobs by the coaching staff. Butler has been matched up 1 on 1 with #1 receivers, often without safety help, while Ryan has usually covered #2 receivers and generally has received more safety help as well. He did cover Thomas 1 on 1 often last week, but that was to me his best game of the season by far. I think they have both been good and are definitely good enough to win a Super Bowl with.