EMU Stinger or Ugg, which lasts longer?

I hear that Stingers (not Bronte) have good quality and last long due to the double stitching, plus have better traction for ice and snow. The arch might be a plus too. Im not interested in the brand name, I just want to know which one is going to last the longest and if one stretches more or becomes looser? (I already know the difference in price.) Is there anyone who has owned both who could tell me the difference?