I would agree there is no "right" answer. The odds of you getting the help you need are far better when you have someone with you. But, doesn't the odds of something happening to either one of you double? I was hiking/camping with a buddy, I fell and was trapped between 2 rocks in a small section of a river we had crossed two days earlier... he froze up on me. Make sure you carry someone capable of helping should the need arise.