Hi
Personally I\'m using the default one, mainly because it\'s default. But also because the brown one has some black font that\'s hard to read against dark background. I do think that the brown looks more PlaneShiftish, as it matches PS homepage colours better.
I also find it quite amusing that the styles have almost opposite background colors. The other is light while other is dark. The other is blue, while other is brown(red/orange). Makes fixed colour fonts/images hard to use, as they always look mediochre in the other style. eg. the server status text.
Maybe the community can think up a new colour theme? >.> I imagine it wouldn\'t be too difficult, mainly just picking/matching colours and converting them to rgb hex code.
*edits*
Here are few example styles. (Sorry for being wide.)

1. Royal
2. Yeti default
3. Bamboo medium
4. Rocky path
5. Ice glaciers
6. Desert wind
7. Wood on stone
8. Deep safari
9. Gold mine
Bye.