Clemson is 67-4 over the last five years (potential to be 69-4). As impressive as 93-97 Nebraska? If they win the natty this year, they would've been one Syracuse loss away from 70-3. Wow.
He also went out and hired one of the best DC's in the country and clearly has made that place feel like home, it doesn't seem like he has much turnover. If he wins it this year, I will feel like he has accomplished more than Saban.
Nebraska will always be more impressive because it's a small prairie school that never had any business being any better than the Iowa States of the world.