For the pre-2000 era:
1. Syracuse: Jim Brown, Ernie Davis, Csonka, Little. Brown, Csonka, Little are in both CFB and NFL HOF. Davis is in CFB HOF, won Heisman.
2. USC: Marcus Allen, O.J., C. White. 3 CFB HOFers, 2 NFL HOFers
3. SMU: ****erson and Doak Walker: both in CFB & NFL HOF.
4. OK...