The saucer section of the TOS Enterprise had those two triangular shaped grey areas on the bottom, which some folks say are landing legs. (A third leg is hidden by the “neck”.)
Yeah, I hear you on the Ent-D saucer. Maybe it should have had tiny warp engines of its own. Or maybe some technobabble about how it could sustain a warp field, just not produce one so the ship could separate and the saucer could go on its merry way while the battle hull turned around and fought…whoever.
The most annoying line for me was just every time Data goes into unnecessary detail about something trivial until slapped down by Picard, or occasionally Riker.
Every episode had at least one line like that.
And people say the dynamic between picard and data was the best part of the show…