I have taken the best four years from every GT Coach (that has four years) and ranked them. First is the Coaches with National Titles, and then we list the rest.
National Championships Coaches:
1. Bobby Dodd - 53-2-1 .955%
1. 1952: 12-0, Natty, SEC champion, Sugar Bowl win
2. 1951: 11-0-1, SEC co-Champion, Orange Bowl win / SEC Coach of the Year
3. 1956: 10-1, Gator Bowl win
4. 1947: 10-1, Orange Bowl win
2. John Heisman - 32-1-3 .930%
1. 1917: 9-0 - Natty, SIAA champion
2. 1916: 8-0-1 - SIAA co-champion - This is the year Tech beat Cumberland 222-0
3. 1915: 7-0-1 - SoCon champion,
4. 1904: 8-1-1 - This is the first year for Georgia Tech under coach John Heisman
3. William Alexander - 35-5-1 .865%
1. 1928: 10-0 - Natty, SoCon champion, Rose Bowl win
2. 1927: 8-1-1 - SoCon co-champion,
3. 1939: 8-2 - SEC co-champion, Orange Bowl win / SEC Coach of the Year
4. 1942: 9-2 - Cotton Bowl loss / AFCA Coach of the Year
4. Bobby Ross - 29-17-1 .627%
1. 1990: 11-0-1 - Natty, ACC champion, Citrus Bowl win / Bobby Dodd Coach of the Year & AFCA Coach of the Year
2. 1991: 8-5 - Aloha Bowl win
3. 1989: 7-4
4. 1988: 3-8
non-national championships coaches:
5. Paul Johnson - 40-14 .740%
1. 2009: 11-3 - ACC champion, Coastal Division, Orange Bowl loss / ACC Coach of the Year
2. 2014: 11-3 - Coastal Division, Orange Bowl win / ACC Coach of the Year
3. 2008: 9-4 - Co-Coastal Division, Peach Bowl loss / ACC Coach of the Year
4. 2016: 9-4 - Gator Bowl win
6. George O'Leary - 34-14 .708%
1. 1998: 10-2 - Co-ACC champion, Gator Bowl win / ACC Coach of the Year
2. 2000: 9-3 - Peach Bowl loss / Bobby Dodd Coach of the Year
3. 1999: 8-4 - Gator Bowl loss
4. 1997: 7-5 - Cheez it Bowl win (Carquest Bowl at the time)
7. Bill Curry - 26-16-3 .611%
1. 1985: 9-2-1 - Birmingham Bowl win (All-American Bowl at the time) / ACC Coach of the Year
2. 1984: 6-4-1
3. 1982: 6-5 - Last year as an Independent
4. 1986: 5-5-1
8. Chan Gailey - 30-21 .588%
1. 2006: 9-5 - Coastal Division, Gator Bowl loss
2. 2005: 7-5 - Redbox Bowl loss (emerald bowl at the time)
3. 2004: 7-5 - Cheez it Bowl win (Champs Sports Bowl at the time)
4. 2003: 7-6 - Idaho Potato Bowl win (Humanitarian Bowl at the time)
9. Pepper Rodgers - 26-19 .577%
1. 1978: 7-5 - Peach Bowl loss
2. 1975: 7-4
3. 1977: 6-5
4. 1974: 6-5
10. Bud Carson - 23-21 .522%
1. 1970: 9-3 - Sun Bowl win
2. 1971: 6-6 - Peach Bowl loss
3. 1969: 4-6
4. 1968: 4-6
11. Geoff Collins - 10-28 .263%
1. 2020: 3-7
2. 2021: 3-9
3. 2019: 3-9
4. 2022: 1-3
coaches with less than four years:
12. John McKee- 4-0-1 .900%
1. 1901: 4-0-1
13. Bill Fulcher - 11-10-1 .522%
1. 1972: 7-4-1 - Liberty Bowl win
2. 1973: 5-6
14. Brent Key - 4-4 .500%
15. Oliver Huie- 3-5 .0375%
1. 1903: 3-5
16. Bill Lewis - 11-19 .366%
1. 1992: 5-6
2. 1933: 5-6
3. 1994:1-7
17. Leonard Wood & Frank O. Spain - 2-4-1 .285%
1. 1893: 2-1-1
2. 1894: 0-3
18. JB Wood - 1-5-1 .142%
1. 1896: 1-1-1
2. 1897: 0-1
3. 1898: 0-3
19. George Andree - 0-6-2 .000%
1. 1902: 0-6-2
20. Harris T. Collier - 0-4 .000%
1. 1900: 0-4
21. Rufus Nalley - 0-5 .000%
1. 1899: 0-5
22. Ernest E. West - 0-3 .000%
1. 1892: 0-3