I gotta say Eve cause I like the purple, and its really fun to see how many ways i can destroy my ship there. Also Gilly is perfect for refuelling stations and just screwing around in general.
Moho is probably the most aesthetically annoying planet I could think of, the sun is annoyingly huge in the sky and the surface is so dark that it constantly makes me think the sun is setting. (its perfect for my gulags though)
Is there any particular reason to use the toroidal tank? I've been trying to find one but I can't think of anything (other than for aesthetic purposes)
I got the meter to go up to X (exameters?) before it looks like it loops back around to meters.
Then my ship/the universe stopped existing after going higher, reverting to launch didn't seem to fix it
http://imgur.com/sJJna07