After watching all of them myself now, some of which I hadn't seen in a few years, I've reevaluated my opinions on some of them.
While TMP was great in '79 (after being Trekless for a decade) it just doesn't hold up. It takes itself too seriously, and some of the acting is atrocious.
TWOK is still a great movie, but would have been better with a bigger budget. The Carol/David part is unnecessary IMO, but hey.
TSFS isn't as bad as I remembered, but again would have been better with a decent budget.
TVH is still one of my all time favorites.
TFF is not as bad as I remembered. Shatner has been unfairly judged on this one.
TUC is still one of my all time favorites.
GEN isn't bad, but not as good as I remembered.
FC is still one of my all time favorites. Alice Krige plays the creepy female lead better than anyone in my generation.
INS is not as bad as I remembered. Could Donna Murphy be any hotter?
NEM is worse than I remembered. Completely unnecessary in the series.
"Are you out of your Vulcan mind?"