Definitely check the crowd calendars for St Patrick's Day, which will fall during that time I think. I think Epcot, and then maybe DHS, is usually the busiest. MK seemed much lower. The weather is pretty decent. This year they opened MK at 8am, so 7am EMH. The park was not crowded at all until closer to 10 or 11am. It's like people didn't know it was open that early or couldn't get up that early. It was nice, but it was still dark when we went to the bus because the time change had just occurred.