I think I like the one on the left even though it closely mimics the earlier 9/11 memorial medal. But I don't think the ghost outline of the city works. The design on the right is ghostly as well and I get it, but I still don't like it.

I like that the one on the left pictures the new office tower on the site, although I think the wording is superfluous - the image says it all. I like this the best of the proposed designs - I think it makes a good bookend to the earlier medal, kind of a before/after pair.As for the one of the right, I get the sentiment expressed by the photo collage left by loved ones at the site, but the motif just doesn't work on a coin - it's too busy and crowded.

Here are a couple reverse designs.

What were they THINKING with the one on the left - yikes!The one on the right I like a lot. The pair of candles eloquently evokes the Twin Towers, and the policeman's and fireman's helmets are an understated representation of the fallen first responders. The wreath may be a little too busy, but overall I think the design works well.