What I see:
TOS: fun but often bad kitsch; but sometimes...sublime.
TNG: meh; stiff.
DS9: first two seasons, what's that smell? But later...like a good wine or cheese.
VOY: coffee, titians, snark and nanites.
ENT: TOS redux with better sfx. But watch again, and it becomes something more.
JJ-TREK: cool, pew-pew. Too much action, needs more people TALKING to each other like grown-ups rather than exposition.