Just for the heck of it, and to give Brian Rubin something to do, I thought I'd create a topic for ranking the various Enterprise designs from the Star Trek shows and movies.
Here's my ranking, which should be accepted as canon. You're of course welcome to post your own lists below and argue unsuccessfully why the Enteprise-D should be higher on the list. :)
NCC-1701 (Original Series)
NCC-1701(-A) Refit (TOS Movies)
NCC-1701-D Refit (Future 3-Engine version, "All Good Things")
NCC-1701-C ("Yesterday's Enterprise")
NX-01 (Enterprise show)
NCC-1701 (Star Trek 2009 movie)
NCC-1701-E (TNG Movies)
NCC-1701-B (Star Trek Generations)
NCC-1701-D (TNG )
Edit: Here's Wikipedia's reference list of Enterprises, in case you can't remember some of them. Wow, Ralph McQuarrie's version for ST:Phase II was horrible. Glad that ddin't happen.