The Wrath of Khan
The Motion Picture
The Voyage Home
The Undiscovered Country
The Search for Spock
The Final Frontier
I should point out that I don't actually dislike
any of these movies, but in any list, something has to come in last.
I can't really rank ST 09 in with the rest. I did enjoy it for the most part even with the poor writing and the gaping plot holes, but I just tend to think of it as a completely new franchise from all that's come before. Perhaps Into Darkness will change my mind... perhaps not.