Forget Bouchon or Sinatra.. the first place we wanted to revisit to on our second trip to Vegas was the Peppermill.
It's not how surprisingly great the food is, the totally vintage and tacky decor, or the fact that it's open 24 hours.
It's that awesome fireside lounge. If it's not busy you can get a seat right infront of the fire. If not, it's not so bad either, you can curl up on the couches and watch random music videos while nursing a bloody mary all night.
In the restaurant, the girls are dressed like Hooters girls, in the lounge they're dressed like prom queens in full on gowns. With that said, the lounge is NOT fancy, it's just a cool place to drink and be comfortable.
Again, still love the Peppermill and I'll probably come back here every time I visit Vegas.