Here are the fields for each season if the CFP had started with the current format. Please note that as I've mentioned before, the problem isn't this setup, it's the stupid super conferences. Every playoff before this year would have been awesome with very few stupid byes, etc.
2014:
1. Alabama
9. Mississippi @ 8. Michigan St.
4. Ohio St.
12. Georgia Tech @ 5. Baylor
2. Oregon
10. Arizona @ 7. Mississippi St.
3. Florida St.
11. Kansas St. @ 6. TCU
2015:
1. Clemson
9. Florida St. @ 8. Notre Dame
4. Oklahoma
12. Mississippi @ 5. Iowa
2. Alabama
10. North Carolina @ 7. Ohio St.
3. Michigan St.
11. TCU @ 6. Stanford
2016:
1. Alabama
9. Southern Cal @ 8. Wisconsin
4. Penn St.
12. Oklahoma St. @ 5. Ohio St.
2. Clemson
10. Colorado @ 7. Oklahoma
3. Washington
11. Florida St. @ 6. Michigan
2017:
1. Clemson
9. Penn St. @ 8. Southern Cal
4. Ohio St.
12. UCF @ 5. Alabama
2. Oklahoma
10. Miami (FL) @ 7. Auburn
3. Georgia
11. Washington @ 6. Wisconsin
2018:
1. Alabama
9. Washington @ 8. UCF
4. Ohio St.
12. Penn St. @ 5. Notre Dame
2. Clemson
10. Florida @ 7. Michigan
3. Oklahoma
11. LSU @ 6. Georgia
2019:
1. LSU
9. Florida @ 8. Wisconsin
4. Oklahoma
12. Auburn @ 5. Georgia
2. Ohio St.
10. Penn St. @ 7. Baylor
3. Clemson
11. Utah @ 6. Oregon
2020:
1. Alabama
9. Georgia @ 8. Cincinnati
4. Oklahoma
12. Coastal Carolina @ 5. Notre Dame
2. Clemson
10. Iowa St. @ 7. Florida
3. Ohio St.
11. Indiana @ 6. Texas A&M
2021:
1. Alabama
9. Oklahoma St. @ 8. Mississippi
4. Baylor
12. Pittsburgh @ 5. Georgia
2. Michigan
10. Michigan St. @ 7. Ohio St.
3. Cincinnati
11. Utah @ 6. Notre Dame
2022:
1. Georgia
9. Kansas St. @ 8. Tennessee
4. Utah
12. Washington @ 5. TCU
2. Michigan St.
10. Southern Cal @ 7. Alabama
3. Clemson
11. Penn St. @ 6. Ohio St.
2023:
1. Michigan
9. Missouri @ 8. Oregon
4. Alabama
12. Oklahoma @ 5. Florida St.
2. Washington
10. Penn St. @ 7. Ohio St.
3. Texas
11. Mississippi @ 6. Georgia
2024:
1. Oregon
9. Tennessee @ 8. Ohio St.
4. Arizona St.
12. Clemson @ 5. Texas
2. Georgia
10. Indiana @ 7. Notre Dame
3. Boise St.
11. SMU @ 6. Penn St.
Total hypothetical appearances 2014-2024
11 -
Ohio St.
9-
Alabama
8-
Clemson, Georgia
7-
Oklahoma, Penn St.
5-
Notre Dame, Washington
4-
Florida St., Michigan, Michigan St., Mississippi
3-
Baylor, Florida, Southern Cal, , TCU, Utah, Wisconsin
2-
Auburn, Cincinnati, Indiana, Kansas St., LSU, Oklahoma St., Tennessee, Texas, UCF
1-
Arizona, Arizona St., Boise St., Coastal Carolina, Colorado, Georgia Tech ,Iowa ,Iowa St. ,Miami (FL) ,Mississippi St. ,Missouri ,North Carolina ,Pittsburgh ,SMU ,Stanford, Texas A&M