I dread a new jersey sponsor for the Dynamo since the last two have been very fishy sounding businesses with crappy logos. I'd guess HostGator would be next in line but I'm sure it'll be something I've never heard of.
I won the DC contest with this entry. As you can see, they kept the Washington monument.
The winning entry for Vancouver was that one that warped the Atlanta Hawks alt logo. As you can see, they took an element from my entry, the bird's face, and made it extreme.
My entry for San Fran was given an honorable mention and they said they'd use an element from it. I thought they meant the leash rather than just the colors. BTW - those are the (current) Miami Dolphins colors.
The Nighthawks is a greatly altered version of logo I submitted. That logo started out as the secondary for a fantasy basketball team I had on the boards. I'll share what I sent in when I get a hold of my laptop.