Da_Guy is right on the money....
Del Frisco's is the place to go. The best steaks, seafood, service, reasonably priced for the quality of food, and KILLER pineapple martinis.
We go to LV about six times a year and eat there at least once, if not more.
Gallagher's in NYNY is another favorite - Especially if you like crab legs. By far the best you'll ever have.
Ok, I'm getting myself hungry, I gotta go!!!