I don't think Vov Vov beats Ham Ham. Knowing only a little about Germanic/Nordic languages, Vov Vov sounds like V-oh-v or V-oh-f in my head, which is a reasonable approximation.
Ham Ham just sounds like ham, like pig meat. Or maybe Hahm, but that sounds more like exhaling before taking a bite than a dog bark.
3DS Friend Code: 0146-9205-4817. Could show as either Chris or Chrysia.