Lunchtime and a Burger, done!
I love a burger, a good, solid, meaty delicious burger. and I have eaten as many as I have found in las vegas. Here are some comparison burgers that are all great, but not as good as the one at Smith and Wolensky:
Holstein's Gold Standard
Burger Bar's
PUB's Amsterdam
Olive's balsamic onion and truffle cheese
What made S&W's burger stand out is just a very well tasting meat aspect It is a large meaty burger, and the flavor of the meat is what made it the best burger I've eaten in las vegas.
If you are hungry, add in the truffle mac n cheese as a side dish, it is fantastic. We ate at the bar and enjoyed some very generous pours of wine and while it is not an inexpensive lunch if you are drinking alcohol, the great tasting food and fantastic service makes it a solid 4 stars.