O, P, OP, and COP! Some R Stock was of course former Q Stock DMs.
Of the post-1938/47/49 Stock, the 1956 Stock bettered the 1959 and 1962 Stock with its extra internal wood, a sort of half-way house between the generaic 1938 Stock and the 1956 Stock. They of course also had the '38 Stock style light displays!
If I wanted to be picky I would say I always adored the converted "Sunshine Car", # 10306 with the extra-glazed doors. However I have fond memories of the '38s on the Picc going to school and then work and also on the Northen and Bakerloo. Between Acton Town and Ravenscourt Park they motored, but creaked and groaned and were almost alive. The superb leather trim on the seats and armrests gave a solid club feel. Regrettably those on the Island seem to be rusting to pieces!