I suggest the Palazzo hotel and casino; it's beside the Venetian and across the street from the Wynn, and across the strip from Treasure Island.
The Palazzo is an all suites hotel and they have a good restaruant right off the casino floor, plus a good sandwich shop on the other end of the casino.
My wife and I stayed in one of the smaller suits, and it had an LCD television/monitor in each room to include the bathroom, which had a shower to die for.
Whenever I go to Las Vegas next, the Palazzo is where I want to stay.
You'll love the rooms, the food and especially their huge casino!