I will throw my hat into the ring with a base I have been working on for about 2 weeks that has had extensive tear downs and rebuilds (I think I am on the 5th and final build). I finding that base design is almost as captivating and fun as character design. The base ambient lighting (pillar room for example) and ICON are recent tweaks. I am especially proud of my science and experiments room.
The Justice Friends Super Group Base
Justice777-4540
Its a simple, practical, and functional base for all my characters since my SG, so far, is just my main, Jenny Justice, and my alts.