Spring Break at Disney is definitely our least favorite time to be at Disney. A handful of years ago our son's birthday was the Tuesday after Easter, so we decided to spend a few days in Disney for his birthday. We had no idea how bad an idea that was.
After calling Disney every day for 2 weeks, we finally got our 3 day trip pieced together. They told us we might have to move sites, but fortunately we didn't. However, we did have to check in twice because we had to make separate reservations to get all the days we wanted.
-Michael