The first 2 links were a survey of 1,000 HS football players. So I'll pass on that one as a legit valuation.
The other put a little more into it, and had Clemsux at 12. He had us at 21. He used attendance as a metric. ESPN couldn't give 2 craps about attendance when valuing for a national TV contract. I'm not saying they're not valuable. I'm not saying they're not currently an elite football program, obviously they are. What I am saying is they're not a national brand. They get viewers b/c they've been ranked in the top 10. Every week I look at the CFB schedule to see what top 10 teams are playing, and that's what I plan on watching outside of USC. I don't care who it is. That's what I'm watching....or if there is an intriguing SEC matchup that is relevant to USC.
I guarantee you ESPN has a team of analyst and actuaries that are pouring over the weekly ratings and adjusting for relevancy. Yes, Clem/Wake was very highly viewed. Was that b/c people love watching Clem, or was it b/c it looked like there was about to be a massive upset that went to 2OT that people wanted to witness? Same for our game against UT last year. It got ratings b/c it was out of control and folks tuned in to see what was going on. What they want to see is, when Clemson plays Louisville and it's a 34-17 game, does anyone watch. The answer is no. Or at least not enough to add to a small market you already have distribution in.