i'll admit that i don't know nearly as much about all these various coaches as i should, but i went hayes, paterno, royal, osborne, and bryant
bryant is really head and shoulders above everyone else. paterno is on my list because the sheer length of and overall success he's had in his career is astounding to me. royal is on there mostly because i couldn't bring myself to put switzer or bowden on there. he's also kind of a lesser Hayes, with both having similar careers. Woody didn't have an amazing win percentage, and wasn't a perfect model of consistency in the least, but also put together some massively powerful teams that played simple yet terrifying football and played against an epic rival that none could match. and osborne's record speaks for itself, even if it did take him a long while to get an undefeated season.
what i think is an interesting discussion is how some of the marquee coaches today will eventually stack up to these legends. i'd love to be able to look 10 or 15 years down the line and see what Tressel and carroll's overall records are