Quick Help Needed on a Big Decision!

Advice please!

I've recently sourced some designs through 99designs.com of a new logo for Evolutionize It. The design brief asked for original designs that would convey positive, collaborative action in a changing world. The designers were also asked to include green in the color palette.

Over 100 designs were submitted - some were interesting, some were horrible. In consultation with the Evolutionize It Board, we've narrowed it down to 4 final design options. Now it's decision time, and I'd love some input in making the right one!

Option 1:
People Theme

square version | horizontal version

Option 2:
Evolution Theme

square version | horizontal version

Option 3:
Creative Theme

Green/blue version | Blue/green version

Option 4:

Invoke the money back guarantee, and find another designer to do something better/different than any of these.

So what do you think? If you had to pick one of the 4 options above, which would it be? I need to make a decision by early next week. Much appreciation in advance for your comments (and your eyes)!