Hi, Tameka!
There is nothing quite as magnificent at the Magic Kingdom at night. I love the lights, the fireworks, the parade, and the beautiful Cinderella Castle magically twinkling under the stars. A ride around Tomorrowland on the
TTA PeopleMover is such a great way to see the park from the "highway in the sky!"
Usually by later in the evening, attractions such as Journey of the Little Mermaid or Dumbo the Flying Elephant will have shorter lines so you can enjoy a ride without a long wait. Other attractions, such as the Jungle Cruise are (in my opinion) just more fun in the dark!
Remember that to change parks, you need to have the Park Hopper option on your tickets. Without this upgrade, you will not be able to enter a second park.
Have a magical evening in whichever park you choose!
Cathy