This is my pick. I like the people entering the building on the right. Also the cars show usage of the facility. I like the flags showing and the fountain is included as you requested. Also the colors are pleasing in the late afternoon sun.
You may want to get rid of the branches hanging on top. I think the little dot of one should go at least. This image is the starkest of the building but shows the most of it.
This is the image chosen for the companion Yellow Pages for 2011.