Actually, I think Galileo is pretty nice-looking when you're not inside any of the clouds (though there wouldn't be a point in being in that system if it weren't for the hideous greyish brown clouds).

I think Dresden is pretty interesting to look at (when you're not in the clouds! ).

I think the only Omega system I find appealing is Omega 3, and in Rheinland, Frankfurt and New Berlin have beautiful markings in their nebulae.

And I can't believe I forgot about the upper Unknown system, that one's gorgeous, and the other Unknown system is gorgeous, as well, but I'm always scared of it for some reason -- maybe because of that black hole... Or maybe because Planet Primus is run by damn dirty apes!

Omicron Gamma is another system rich in gorgeous bright colors, and one of the best-looking suns in Sirius.

I just love traveling in the Omicron systems, because they arouse a sense of freedom and yet also a pleasing melancholy and loneliness that the other systems don't come close to.

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Cardamine, cardamine, everybody wants cardamine!
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It's the music
The Kusari music is quite lonely, and yes, the outer systems seem to have a loneliness to them, perhaps the fact that the system is almost fricken' DESERTED....

Prettiest most definitely Tau 37 and the upper unknown.
Ugliest, New York (except for the badlands, they rock) Sigma 13, Leeds

Ugliest:
All of Bretonia. no insult but it is a mining house and u know how pollutive that can get.