Here is a third nomination for Geek-Qualizer. Others have mentioned his "boyscout" qualities -- trustworthy, loyal, helpful, friendly, courteous, etc.
But let's hit the nail on the head. Geocaching is not just a hobby or a fad or a passing fancy for GQ. In fact, there is only one thing in this world that GQ loves more than geocaching. That is his dog, Breeze who he has trained to cache with him. On a recent night cache outing, I watched Breeze led the way on a mile hike taking us straight to the cache. GQ, is about as good a "poster child" for this hobby/sport as I can possible imagine.
Oh, and Breeze wants me to add her vote, too.