I like how they've used arrows in the attached logo and image within the article to symbolize choice and movement. Your entry #4 shows this as well with the two doors buy I think it would be hard to keep clean and consistent with different media (print, tshirts, etc)
http://futurestartup.com/2011/12/15/choice-why-we-make-choices-that-we-make-and-how-can-we-make-better-choices/