First 2 series of TNG are almost unmatchable. My cat could have written and directed it better.
But then the first 1 and a half series of DS9 were pretty meh.
Thing is both displayed different sides of the federation.
One you got the shiny new flag ship and the other you got a run of the mill outpost at the edge of federation space with everyday officers.
Both were original and good.
Voyager was under welming and could have been so much more.
Enterprise? Well if it had started off as strong as it was in series 4 it would most likely be my favourite! But alas they didn't. I still dunno why they put the Xindi crap in? I mean if they wanted a war they had Romulans!!!!!!