If you could go to one planet (any planet even the exoplanets and the planets that aren't quite planets) which one would it be? Keep in mind this is so hypothetical that the technology would be be there to get you to the planet in a good amount of time and to walk around to your heart's content.

I would choose Neptune: hot ice made of water/ammonia, methane diamond rain and harsh winds plus a giant-ass dark spot? Yes please. Plus I wanna see what it looks like to be out that far in the dark. What would the sun look like? Would I be able to see other stars? I could only imagine.