I've been watching as much of the Episodes from the classic series as I can and I think now I've seen all the pertwee, baker and davisons ones aswells as most of the troughtons and some of Hartnells too and I have finally devised a list of my fave classic episodes so far and my fave story arcs:
Fave episodes
1.The Caves of Androzani: Part 3 (Davison)
2.The Caves of Androzani: Part 4
3.The Caves of Androzani: Part 2
4. Earthshock: Part 4 (Davison)
5. The Talons of Weng-Chiang: Part 2 (Baker)
6. The Talons of Weng-Chiang: Part 3
7. The Talons of Weng-Chiang: Part 6
8. Earthshock: Part 3
9. Genesis of the Daleks: Part 6 (Baker)
10.The Caves of Androzani: Part 1
Fave Story Arcs
1. The Caves of Androzani (Davison)
2. The Talons of Weng-Chiang (Baker)
3. Genesis of The Daleks (Baker)
4. Earthshock (Davison)
5. Pyramids of Mars (Baker)
6. The Robots of Death (Baker)
7. Power of The daleks (Partrick Troughton)
8. City of Death (Baker)
9. The Visitation (Davison)
10. Spearhead from space (Pertwee)
That done, but there are still many singular episodes which I loved buts other episodes were worse and my story arch choices are best on most consistently great throughout the episodes. I definiteley enjoyed the Davison episodes but I still though he was one of the worse doctors. My favourite of the classic series being Baker, then Pertwee, then troughton then Hartnell then davison and I haven't seen enough of C.Baker and Mcoy to rate them.