I think that my preference for this design is somewhere between #46 and #48... #46 is missing something, but #48 is too "proper" of a wire-frame globe... perhaps adding "SDS" in the middle of #46, or revising the globe of #48 to be more subtle, or more unique???
my only other request - in one of your early versions you included a thin white line between the blue and the orange/green. I would like to have that added back in as an option.