I liked his journals from Karateka better than those from PoP. He was much less cocky then and his innovations seemed more novel and exciting, plus you know he was squeezing a lot more out of the hardware from that time.
MoD was really an amazing book, though. Highly recommend for anyone who played the game back when it was still new (or anyone interested in a case study in product management).
Second on Masters of Doom; my favorite part is near the beginning, when Carmack showed Romero the smooth scrolling on a PC, and Romero is running through the office trying to show everyone, only for most of them to be largely unimpressed. I thought it was telling that the only person who really understood what Carmack had made was Romero, and it showed why they (initially) made such a good team.
MoD was really an amazing book, though. Highly recommend for anyone who played the game back when it was still new (or anyone interested in a case study in product management).