Well, at least some of Kirk's Ensigns had their own personal quarters ("Obsession"). The setup doesn't appear to differ much from Janeway's, then - although in both cases we lack direct evidence of the enlisteds sleeping in bunk beds three high, as ST6 indicates is the Starfleet practice.Ah, but Kirk's ship was 'packed' more or less as was admitted by on-screen dialogue.
Perhaps more relevance comes from the fact that the Defiant MSD shows four decks when dialogue specifies at least five full-height decks and a turbolift chart shows six. If the average MSD omits 20% of decks (1 out of 5), then a 24-deck MSD for the E-E would lend credence to Picard's ship having 30 decks, which is much more sensible for a ship of those dimensions anyway...Also: MSD's aren't to be taken seriously. Voyager's has two warp cores, when the ship clearly only has one.

The bridges of the TOS and TOS movie ships always suffered from a TARDIS effect: if the ship's outer dimensions were as given, the turbolifts wouldn't fit. The problem could be solved by moving the bridge down a bit, at which point additional rooms would also become available around the bridge.The 1701 and 1701-A and NX-2000 didn't have.
The TMP bridge provides access to an airlock and docking port. Backstage material claims this is by having a turbolift that rotates on the spot, which is rather insane. Since the access clearly is via turbolift anyway (Spock emerges from it), it's much more likely that the access features movement between decks. That is, the docking port would be located somewhat above the bridge level.
This also helps explain how Chekov in that scene could reach the bridge simultaneously with Spock without using the same turbolift: he would have taken the other lift, and the single shaft serving the docking area would split into two at bridge level... The "rotating turbolift" theory wouldn't allow for that.
Timo Saloniemi