What kind of room have you booked at the Mirage? I have to say, the regular rooms are small and really not nice, but the tower rooms and anything above are solid. I ADORE the Venetian and it's a far superior property than the Mirage in every way, but agree with other posters that it's not worth switching hotels for one night on such a short trip. For restaurant recommendations, if you want to visit the Venetian, Grand Luxe Cafe is a solid option. It has the Cheesecake Factory's menu (something for everyone) and is super affordable. Food can add up FAST in Vegas so I've found it's good to have a few affordable options as go-tos. Mario Batali's burger restaurant is solid at the Venetian, as is Trattoria Reggiano in the Grand Canal Shoppes (mall at the Venetian). At the Mirage, I LOVE Stack but would go earlier in the evening with teens. It's American comfort food with a twist (fancy pigs in a blanket, tator tots stuffed with bacon and Brie...). As others have said, half the fun in Vegas is just walking around and exploring the hotels! Caesars is a can't miss, and so is the Cosmopolitan for anyone who likes sparkly things. The Cosmo has a ton of amazing restaurants, too. Holstein makes great burgers! I think Bally's is worth popping into to see a hotel that looks "classic Vegas." And if your family likes Thai food, SEA Thai is a terrific option there. Pretty affordable, beautiful atmosphere, excellent food. Many people recommend it to families, but I would definitely skip the aquarium at Mandalay Bay. Very tiny and pricey.