I am a 40 year Yes fan and would have to give my vote to the CTTE line-up but, for me, THE defining characteristic of Yes was always Jon Anderson. Listening to JA's solo albums suggests to me that his role was central to the Yes aesthetic. I love it all, though, and think that bad Yes is better than most other Prog/Rock/Pop. Rabin was, for me, too conventional a player to interest me and his involvement in Yes could have been any session guy. But it's all good. I love Tormato, Drama, Relayer, Tales of Top: all of it.