#4,5,6 are just too corporate / "terminator" looking. Also, I would prefer logos be designed initially in black & white. This logo should represent a luxury vacation that will be adventurous and fun. 4,5,6 are come across very blocky, cold and rigid. Let's try to let loose a little bit here!
Company provides adventure triathlon vacations in hawaii featuring swimming, biking, and running. (logo does not necessarily need to show images of swim, bike and run though). Our customers will be wearing t-shirts & hats with this logo with pride - so it cannot look like clipart - needs to be unique.