I'm actually surprised by the results a little... personally i thought tank no. 4 was the best out of the lot, since it had a nice scape design to it, compared to the others which to me seemed a bit boring (no offense to the owners), maybe a few more plants or driftwood etc would help set them off that much more...
I think if Tank no. 2 had more plants or driftwood in it i definitely would have swung my vote that way instead...
Now on a more curious note, i wonder how many people are basing the votes on the actual tanks, and how many are basing it on the fish inside the tanks / the photography skills...