All good points!
Coming at this from a slightly different angle, we have the argument from Tony Wills, author of "A People for His Name: A History of Jehovah's Witnesses and an Evaluation," that the only real "naming" authorized for God's People is found in Isaiah 62:3-5 (NIV):
"You will be a crown of splendor in the Lord’s hand, a royal diadem in the hand of your God. No longer will they call you Deserted, or name your land Desolate. But you will be called Hephzibah, and your land Beulah; for the Lord will take delight in you, and your land will be married. As a young man marries a young woman, so will your Builder marry you; as a bridegroom rejoices over his bride, so will your God rejoice over you."
So the name should NOT be "Jehova's Witnesses," but "Hephzibah".
Really rolls off the tongue, doesn't it?