We were in Vegas to attend a gift expo in early March, and stayed at Bellagio.  The room was larger than standard rooms, updated furnishings, plasma TV, remote controlled window treatments, mini-bar, and very clean and quiet.  The bed was heavenly.  We had a view of the gorgeous garden/pool area.  The check-in is a good walk from the elevators, so check your luggage and once you're in your room, call to have it brought up.  Saves from having to drag it through the casino.  Can't comment on the restaurants, but we had drinks at the Petrossian which we enjoyed, not diluted either.  The conservatory...