If you had to live on a planet other then earth which one would it be and why?

[UltimateUnknown]

Technically you can't answer this question because for us to be able to live on a planet, it has to be habitable for humans, and we have yet to find a planet that can sustain life.

Also, how are you going to live on Neptune? It may be cold but it's a gas giant composed almost entirely of Hydrogen and Helium. It's like saying I'm going to somehow live in the air.