I did today's top 5 on the topic, and I think many of you would agree (at least with most of the choices, though maybe in a different order). I'm really curious to know what other ships you would add (and in place of which ones). Have at it!
http://kooztop5.blogspot.com/2012/05/top-5-coolest-sci-fi-spaceships-from.html
I cannot believe that the only Trek ship to make the list was the Enterprise. The Klingon Bird of Prey was a much cooler design IMO than the Enterprise [any variation on TV] and even the Romulan Battle Cruisers were more meancing in their apperance.
In term of anything from Babolyn 5 - the CGI was so undeveloped at the time that the ships looked way to fake IMO. Only the Vorlon ship was decent.