All of them hold up pretty well when binging them, although I do fairly slow binges, maybe watching 3 - 4 episodes a day at most. There are episodes I dislike and I simply skip those when binging, which helps a lot. (For example DS9 is my favorite Trek but I really, really hate Vedik/Kai Wynn and skip the earlier episodes where she's being an annoying bitch. I do watch the later episodes where she's a lot more important, but I still hate her character so much. For TNG I skip all of season 1 and most of season 2.)