Although others have attractions for kids, Circus Circus has to be the hands down choice.
They have the famous Carnival Midway which also includes an arcade. Next to the Midway is the Circus Stage which showcases free world class circus acts daily.
Adjacent to the property is the Adventuredome Theme Park. It includes rides for kids and adults, as well as games and other Circus Circus-exclusive attractions such as free clown shows.
Fairly new (opened Oct 2011) is the Chuck Jones Experience, a nearly 10,000 square-foot destination. At its entrance is the 1,000 square-foot glass-enclosed class room where creative art projects will be encouraged and guided by teachers Your first stop on the guided tour is the 1930's-style movie theater. There, you'll meet Chuck Jones via a short film and after, you'll walk down a virtual street surrounded by many of Jones' most memorable characters and a timeline of his extraordinary life, ending up in a re-creation of Jones' studio where he worked and discovered some of this most famous characters, like Wile E. Coyote, Road Runner and many more. From there you'll experience the characters in 3-D and learn more about how characters are developed while viewing some of the original drawings made by Jones' while discovering these characters. Move onto "Animation Alley" where a multimedia wall displays animation pieces from the permanant collection from the Chuck Jones Center for Creativity and other animation studio collections. You'll end the tour with a visit to the Acme Workshop where you can try your hand at creating sound effects and voiceovers for a Chuck Jones cartoons.
The hotel rates are a great value, and the rooms are surprisingly nice and large. They also give you a Resort Passport with over $150 in coupon savings for dining, The Adventuredome and more.