I agree with Insurection and Generations, but V is the worst. There are so many problems with it, and I would not call myself a huge Trek fan. The main thing that bothered me was [spoiler]The relationship between Scotty and Uhura. What was that about? It was never hinted at before or since. It just felt oddly out of place. Next is the scene where Scotty knocks himself out. That was just stupid and pointless.
The one scene I liked that stands out is after the row your boat, they are laying there and Spock says, after pondering it for a while, “Captain, life is not a dream.” This was funny and fit in with the character.[/spoiler]
As for TMP, I agree it is not good, but I do like the special effects and the music and every so often in the right mood, I can watch it and enjoy it. I cannot say that about V.