Actually, I like Libeskind's proposal. Granted, the colors on the picture are somewhat odd but imagine this building in reality. It could really be interesting, don't you think?
Do some resarch on the net. This building is packed with ideas and symbols and seems to be a meditative and er ... o.k.: spiritual space.
The architecture of the THINK-Towers is exciting, too - no, there is nothing much inside them (a school, a library, a museum and memorial, a center for performing arts and a conference center). New offices are situated around the two towers.
It is a symbol of fragility and vulnerability and whenever I see this picture my "inner eyes" start seeing sort of a personal copy of the Twin Towers.
BTW, THINK come with three proposals: First is called "World Cultural Center". Here's No. 2, the Sky Park:
And No. 3 is called "Great Room":
There are two proposals I dislike: the #-waffles building by Richard Meier (don't understand the meaning and just don't like it) and the Peterson/Littenburg Architecture which (similar to a new/uninspired copy of the old WTC) remains in the past and seems to lack a link to future.