The lw and I just had a perfect weekend in Venice. See
http://www.flyertalk.com/forum/showthread.php?t=342190 for more details. I asked the Danieli concierge where the Al Mori was and it was pretty far from our hotel and St. Marks square so we didn't make it over there. But our area was a lot of fun. Perfect weather and not too many tourists. We didn't have to wait in any lines. The Danieli is a fabulous hotel if you have the points or Euros to swing it.