I think Nick Saban can claim the greatest of all time at this point (GOAT). Anyone want to argue that?
Nick Saban is without a doubt one of the best football coaches in the modern era. Is he the greatest of all time? Depends on who you ask and how you look at it. Here's some stats to munch over:
Nick Saban:
Years Coached = 20 years
Career Record = 196-60-1 overall and in NCAA major schools is at 191-60-1
Career Win Percentage = 76.5%
Bowl Record = 8-8
Bowl Win Percentage = 50%
Lowest Win Percentage at specific school = Michigan State @ 58.5% where his record there is 34-24
Lowest Win Percentage of any season = 50% tied for years 1996 and 1998 at Michigan State where his teams were 6-6 each season
Highest Win Percentage at specific school = Alabama @ 85.4% where his record there is 105-18
Highest Win Percentage of any season = 100% for the 2009 season at Alabama. His team was 14-0 that year.
Nick Saban has built a football factory and a dynasty at Alabama. He only has one undefeated season as a head coach. His success will be marked in the history books for many years to come. Ever since he left Michigan State to coach at LSU, he has improved in coaching, recruiting, and managing the game. It's paid off in lots of wins and national titles. He's had 22 Consensus All-Americans at Alabama alone (testament to excellent recruiting and coaching) and 26 altogether.
Since I have a bias as well, and I'm an Ohio State fan, I'll post up Urban's numbers for comparison.
Urban Meyer:
Years Coached = 14 years
Career Record = 154-27
Career Win Percentage = 85.1%
Bowl Record = 9-2
Bowl Win Percentage = 81.8%
Lowest Win Percentage at specific school = Bowling Green @ 73.9% where is record there is 17-6
Lowest Win Percentage of any season = 72.7% at Bowling Green in 2001 where his team was 8-3 that year
Highest Win Percentage at specific school = Ohio State @ 92.6% where is record there is 50-4
Highest Win Percentage of any season = 100% at Utah in 2004 where they went 12-0. 100% at Ohio State in 2012 where they went 12-0 without a bowl appearance.
Urban Meyer is competing against coaches 100 years ago in regards to the highest winning percentage in major FBS schools. Only two coaches rank above him in all-time winning percentage (Knute Rockne of Notre Dame and Frank Leahy of Boston College/Notre Dame). Among all active FBS head coaches, no one else even comes close to matching his win percentage. Bob Stoops comes in at 2nd with 79.5%. He also has two undefeated seasons as head coach (three if you only count the regular season games). He has three national championships to his name. When he took over as head coach for Ohio State, he won 24 straight games before losing to Michigan State in the 2013 Big Ten Championship game. In fact, as OSU head coach, Meyer has only ever lost to one Big Ten team in his career- and that is Michigan State. He is 4-0 against his chief rival, Michigan at OSU. Meyer has also won more national championships than he has bowl game losses (3 vs 2). Meyer only has 9 Consensus All-Americans in his entire coaching career (7 of which are from his time at Florida).
So who is the greatest of all time? Well Nick Saban is a seasoned coach and has "seen it all". He's had good years and bad years both. As Alabama head coach, he has built a college football powerhouse that churns out All-Americans and NFL players like socks in a sock factory. Saban is in his golden years of coaching. Urban Meyer is still a young coach in the grand scheme of things. He's got plenty of coaching years ahead of him. His incredible winning percentages may go up or down in the coming years as the college football game evolves.
Nick Saban and Urban Meyer are the only two FBS head coaches to have won a national championship at two different schools. Meyer claimed the 1st CFP national championship and Saban has claimed the 2nd CFP national championship.