I've been enjoying Star Trek in various incarnations starting with syndicated episodes of the original series in the late 1970s.

I would rank the various incarnations as follows:
1. Star Trek: The Original Series
2. Star Trek: The Next Generation
3. Star Trek: Deep Space Nine
4. Star Trek: Enterprise
5. Star Trek: Voyager

I would rank the films as follows:
1. Star Trek II: The Wrath of Khan
2. Star Trek IV: The Voyage Home
3. Star Trek VI: The Undiscovered Country
4. Star Trek: First Contact
5. Star Trek III: The Search for Spock
6. Star Trek: The Motion Picture (Director's Edition)
7. Star Trek: Nemesis
8. Star Trek V: The Final Frontier
9. Star Trek: Generations
10. Star Trek: Insurrection

I would rank the commanding officers as follows:
1. Captain/Admiral James T. Kirk
2. Captain Jean-Luc Picard
3. Captain Jonathan Archer
4. Commander/Captain Benjamin Sisko
5. Captain Kathryn Janeway

I would rank the vessels as follows:
1. USS Enterprise
2. USS Enterprise A
3. USS Enterprise E
4. USS Enterprise D
5. USS Voyager
6. Enterprise NX-01
7. USS Defiant