By comparison (not to 1-Up anyone, but just by comparison), I have seen every movie and every episode of all the shows. Most of them more than once.
I’m late-gen X, so I grew up with TNG, but I didn’t like TOS much until more recently (given the campiness and overdramatic acting)—whereas I like everything TNG and afterward, hands down. Well… everything post-Riker-beard. 😃
The TNG movies, by and large, are meh. I like the Kirk movies except V and the theatrical version of The Motion Picture (The V’Ger Incident fanedit was decent). I also love ST '09 and ST:Beyond, but I haven’t seen the Star Trek Vengeance fanedit of Into Darkness yet to know where it weighs in for me. Theatical ST:ID is too long and unfocused on who the real villain is.