Hi Jennifer,
For your Spring Break getaway to WDW, I would recommend the
Polynesian Resort. You'll get a large room with two queen beds plus a daybed. In addition, the bathroom has more elbow room than those offered at moderate resorts and since you'll want to get to the parks early to stay ahead of the crowds, a good size bathroom will be a great convenience!
And when you tire of touring, you can return to the beautiful resort to take in the gorgeous Nanea Volcano pool, sandy beach, great restaurants and stores and relax while strolling on the torchlit paths.
We love that the Captain Cook's quick service eatery is open 24 hours! On our last vacation to WDW, we chose the Polynesian for all of the above reasons.
For access to the Magic Kingdom, you'll be able to take the monorail or a boat. Disney's Hollywood Studios is just a short bus ride away.
If you'll be spending more time at the Magic Kingdom then Disney's Hollywood Studios, I would definitely consider staying at a monorail resort (Bay Lake Tower, Contemporary, Polynesian or Grand Floridian).
This resort is a tropical oasis in the the middle of WDW!