Original Cast:
1: Decent story, but slooooow. Not horrible, but not that great either.
2: Best one. Great story, great action. Shatner's acting was actually good!
3: Decent movie, but not great. Better than 1.
4: One of my favorites. Good use of humor, and it doesn't take itself too seriously. A fun ride.
5: The camp scene was cute. Sucked ass after that.
6. Very good story. A great send-off for the original cast. Would have been 10 times better if they had kept Lt. Saavik instead of introducing Lt. Valaris. Then we wouldn't have guessed who did it in the first 20 minutes.
TNG Cast:
7. Some people hate it, but I liked it for the most part. Some annoying bits, but not too bad.
8. Best TNG movie by FAR. Overall, a good movie. Not quite as good as 2.
9. Fair, but not that great. Stupid use of Data as comic relief is old and tired. Poor writing.
10. Like 9 but even worse. Put them out of their misery already.