I voted for #1 but it's really a tough choice. I like the fact that you can walk around it and see the tank from different angles and. The whole island is really attractive as well and being powered by vortechs makes a big difference.
#2 also looks really nice since you have a whole wall to work with and make any point a focus point. The way the tank looks is pretty appealing, but personally I wouldn't have that many fish in there it looks like a cluttered highway at rush hour. Not as cluttered corals would have been a better idea. But again, that's just how I would do it
Given the choice to have one for free, then I would take either of them