Ask HN: Which logo is best?

Logos: http://i52.tinypic.com/2v024o0.jpg Product: iPhone running app called "PaceWave."

Every running application out on the marketplace right now has some generic running silhouette as icon and logo. We want to differentiate our app from the rest, of course. If you have any neat suggestions for a logo that'd be appreciated as well!

Thanks and please vote on which logo you like best. :)