Fashion Show mall is good, because it has a great range of stores - from Louis Vuitton to American Eagle, they really do have it all.
My favorite part was the popup fashion shows they have on the hour during the weekends (and maybe during the week? not sure). An entire runway just comes out of the ground and models showcase fashions from the mall - it is truly a unique experience.
This is the closest you will get to an average mall on the strip in Las Vegas. Even so, it doesn't lack in the theatrics and over the top Vegas decor and ambiance.