2. (very closely behind) TNG
3. DS9 (although I haven't seen much)
It's hard to continue the list much; my VOY experience is neither positive nor negative, I've never cared about TAS much, and have seen...2 episodes of ENT
I have a DVD set called something like 'Mirror Universes and...'can't remember. Anyway, I decided to watch even the ENT episodes, though I did leave them last. I had been watching this one ep for...maybe five minutes, when the disc went crazy and I had to stop watching. I tried to clean the disc and try again but it didn't work.