If we are being serious then Mars is the only real planetary option at the moment.

As a hypothetical idea using the Sol system (ie we ignore that the gas giants atmospheres/temperatures would all kill us and that if they didn't kill us we wouldn't be able to see anything through them anyway) then I agree with Euphoria, Saturn is probably pretty neat visually if we could stand on the outer surface.

Gliese 581g

IT is a real planet in the goldilocks zone of its star, which means "Earth Like" planet, with possible conditions for alien life. 

But it takes so long to get there that even a Nokia 3310 would die in the trip.

Obviously that planet on StarTrek where all the women wear those skimpy outfits...

Planet Risa. (i think)

I suggest everyone take one of these statues on your trip.

Mars, for the sake of continuing to live. And I'd rather not freeze to death on one of the further planets.

Saturn, nice weather and cool rings.

Dog Doo 8

Although the universe ends after Dog Doo 7

Planet Arrakis... known as Dune.
Land of Sand. Home of spice... Melange.

http://www.youtube.com/watch?v=qcogUiz3yFk

This looks pretty... I'll go there!

A planet I've made on my book, called Sakeina.