I own fourteen Who stories on DVD and thirteen of them are Tom Baker stories.
Counting down from #13 to #1 would look like this:
13. The Face of Evil (Chris Boucher/Pennant Roberts, 1977)
12. The Sun Makers (Robert Holmes/Pennant Roberts, 1977)
11. Terror of the Zygons (Robert Banks Stewart/Douglas Camfield, 1975)
10. The Masque of Mandragora (Louis Marks/Rodney Bennett, 1976)
9. The Invasion of Time (Graham Williams and Anthony Read/Gerald Blake, 1978)
8. Horror of Fang Rock (Terrance Dicks/Paddy Russell, 1977)
7. The Seeds of Doom (Robert Banks Stewart/Douglas Camfield, 1976)
6. The Ark in Space (Robert Holmes/Rodney Bennett, 1975)
5. The Robots of Death (Chris Boucher/Michael E. Briant, 1977)
4. Pyramids of Mars (Lewis Greifer and Robert Holmes/Paddy Russell, 1975)
3. The Deadly Assassin (Robert Holmes/David Maloney, 1976)
2. Genesis of the Daleks (Terry Nation/David Maloney, 1975)
1. The Talons of Weng-Chiang (Robert Holmes/David Maloney, 1977)