Bouchon has been a stop for brunch on my last two sin city trips and it will probably turn into a must-visit kind of place whenever we're in Vegas. My friends and I go here for the amazing brunch if we can manage to wake up before it ends at 2PM. Extra props to the waitress for putting up with me in my hung over state and dealing with my lack of comprehension skills that morning.
The food is executed really well, the menu consists of french staples as well as traditional brunch items. You can't go wrong with the chicken and waffles which comes with two sauces, a rich syrup and gravy with bacon and mushroom bits. Also good choices are the steak frites and the traditional omelet.