My vote goes to
First Contact. It was a VERY close call for me between that and TUC (which represents the TOS crew/23rd century setting at their absolute best IMO). I think I like both movies roughly equally
as movies, so in the end I voted for FC simply because I like the TNG characters more.
Runners-up for me would be GEN, TVH, and ST09. The remaining six movies all range from "meh" down to "EW".
I know I am going to be stoned for this...
For me it's the TNG movies 7, 8 and 10.
No stones from my corner!

Obviously I agree on GEN and FC, though I will say on NEM... not so much. I didn't think it was
awful like many seem to, and certainly had some excellent aspects (great effects, FANTASTIC music, some nice specific character moments), but overall I do think it's one of the weaker ones.
And I also liked what you said about GEN, in terms of a really big, epic
feel that it somehow had. One thing I loved about it was the approach to ship cinematography. From the rolling close-ups of the Ent-B in the ribbon, to the crazy camera angle used when the Bird of Prey decloaks at the observatory, to the Ent-D/BoP battle (which had several brilliant shots filmed from in front of the Ent-D, with the Klingon disruptor bolts flying into the camera)... the ships were filmed in a very creative, very dynamic way. I haven't seen this in any of the Trek movies, before or since (not with the same
consistency anyway; several of the movies have some shots like this here and there, but only GEN used this style as a standard for nearly all external ship scenes).
The one thing I
didn't like about the battle was the simple fact that it was a Bird of Prey. I wish they hadn't cheaped out (they wanted to re-use their explosion from TUC

); the end result of the sequence would have been much more believable and satisfying if the Duras sisters' ship had been a Vor'Cha.
Sure you can. Two words: Fleet engagements. The short (but amazing) battle in FC and the larger Dominion War engagements were the best battles Trek produced IMO.
And do not forget the Enterprise vs Scimitar battle sequence, IMO the best ship to ship fight in the franchise.
I agree about the FC battle and the Dominion war stuff (especially "Sacrifice of Angels"), and
sort of on the Nemesis battle. The effects themselves were excellent, and I enjoyed the battle aesthetically, but it's hard for me to get past how ridiculously stupid the Scimitar itself is.