Anymore, I've started considering the following as occuring in separate universes:
3. TNG(and its movies)/DS9/VOY
Mostly I agree with this assessment. Nick Meyer's Trek is his own Trek reboot, completely different from Roddenberry's Trek, but still a valid interpretation. I'll never understand the need for some fans to reconcile all the variants of Trek into one cohesive whole (though clearly I'm in the minority). Each interpretation of Trek is best enjoyed on its own merits. Meyer's military Starfleet stands in stark contrast to Roddenberry's non-military Starfleet (and Roddenberry's own ideas about the show changed over the years).