That hard to define thing is called bias.
Ohio State is without question a blue blood. They've spent more weeks ranked in thr top 25 than any program, third-most weeks in the top five, and they've never really had a "down decade" in modern times. They've pretty much always been good since the 1940s. Is that recent enough for you?
They have a really good argument for #2 behind Alabama.
Depending on the parameters, the blue bloodshed are:
1) Alabama
2) Ohio State
3) Oklahoma
4) Michigan
5) Notre Dame
6) USC
And if you wanted to stretch the parameters a little bit, you add 7) Texas and 8) Nebraska.
Then you have the clear tier below with Penn State, Miami, Florida, Florida State, Tennessee, Georgia, LSU, Auburn, and UCLA. UCLA and Auburn get the eye rolls, but in weeks ranked and weeks in the top 5, they're right there.