It reset the standard without a doubt. I think the attitude of both shows should be different. The work ethic on board the Federation flagship isn't going to be the same as on board a busted up space station that's for trade and commerce. Comparing TNG to DS9 is like comparing the House of Windsor to the Bunny Ranch in Las Vegas.
I reckon both voyager and enterprise concepts were good,but once they were on air those concepts were quickly forgotten about and they ended up with the episodes we got.
Enerprise got back on track by the end. Many of the season one characters showed up to sign up to the F... Oh wait. They cocked that up.
I have the DVDs in their entirety for every show and movie produced in this franchise so far. But my order of preference would be: TOS DS9 TNG VOY ENT TAS