B4 adult I worked in biotech and had to spend about 10 days a month in Vegas for over 6 years...there are a lot of fantastic restaurants with great atmospheres..the problem is they all start to feel and sometimes taste the same.
If you want to try something elegant, old school ( currently the oldest existing steak house in vegas) and amazing go to the Rosewood Grill... you'll swear Sinatra or Gambino will be walking through the door any minute...
http://www.tasteofvegas.com/html/steakhouses.html
http://travel.yahoo.com/p-reviews-28...de-action-read