Design contest

I mentioned my triathlon blog venture a couple posts ago, and my efforts to create something a little bigger around it. As part of that I've commissioned a design contest over on 99designs.com to help me come up with a set of images for use on the site. The sets consist of three images, one for each sport in a triathlon (swim, bike, run). These images will be used as buttons, badges and icons on the site, and I'd also like to use them as a set for the main logo of the site. So far 60 entries have been submitted by 18 designers, which is just incredible. I've been really impressed by the images that have been submitted and by the overall time and efforts put in by the designers.

The contest is nearing an end and now I need help deciding on a winner. I've created a poll over on 99designs and want your input on the 8 'finalists' I've selected. Which ones do you like best and why? You can give 0-5 stars to each entry and provide comments as well. Remember, I'd like to use the trio of images as a logo and also each image independently as an icon.

Here's the link to vote in the contest. Thanks a lot for your help!