If you could have any vehicle (a helicopter, sports car, space ship, yacht, etc.) and a free place to park it, what would you choose, and why?
Before I even begin to describe what I'd want I'll give you the long and short of why, complete with all relevant details and the psychological reasons behind them: BECAUSE.
Now then! Whatever it is, it must
be capable of faster-than-light space travel. Going places people have already been only sates certain people's spirit for adventure for so long, especially when the opportunity to go far beyond that comes along. It would have regular rocket engines as well so you'd still be able to go regular terrestrial places, too, so you're left with quite a few options: Want to be right there to watch Sirius B eclipse the A star? You can do that. Need to run into town to grab bread and milk? It does that, too!
It would also contain all the creature comforts one would expect from a 24th century United Federation of Planets vessel: a holodeck, phaser banks—given that you can't trust anything
since the galactic neighborhood went to hell—, replicators that I would make sure are programmed with Taco Bell's menu, a mysterious bartender, an android (and heck, the two could be the same person. Ancient technological wonder of an android serving screwballs while weaving yarns of civilizations long past? I think sooooo
!), and one addition: bathrooms. Unlike so many famous Starfleet captains, I need to pee every once in a while.
The whole craft would be spherical, and not only rotate to keep in line with popular science fiction perceptions, but one could manually power it, if they so desired, but running or climbing—the distinction being mute in the zero gravity outside the main living area—along the inside of the hull. As one final detail, everything would be constructed of an alloy that would become transparent when the right [technobabble term] is applied.
In case you've deduced as much by now, that's right. I want a giant hamster ball with warp drive.