I suppose it is a subjective question. There is not a set definition for college blue blood.
On3 goes with the criteria: 3+ generations of elite history, one of which has to be in the last two generations. They throw in a national championship win as well.
According to the article
Current Blue Bloods: Alabama, Ohio State, Oklahoma, Michigan, Georgia, Notre Dame, Texas, USC, Penn State
Blue Blood Contenders: Florida State, LSU, Clemson, Nebraska, Miami, Florida, Auburn, Tennessee, Oregon
On3 goes with the criteria: 3+ generations of elite history, one of which has to be in the last two generations. They throw in a national championship win as well.
According to the article
Current Blue Bloods: Alabama, Ohio State, Oklahoma, Michigan, Georgia, Notre Dame, Texas, USC, Penn State
Blue Blood Contenders: Florida State, LSU, Clemson, Nebraska, Miami, Florida, Auburn, Tennessee, Oregon