Well, I can't see any major differences in any of the six redesigns of the WTC site. I suppose if I had to pick one, i'd pick this one, because it creates a big confined open space that would feel more like a shrine. I like the idea of something green that you can walk around and look down into, plus it includes the tallest building of the 6 plans, and I think the site needs at least one tall building. I was kinda hoping there would be something symetric built there to evokve the twin towers, but I guess that's not happening.