I'm going first week of May as well. I checked out touringplans.com and based off it's suggestions on which parks to go to and avoid and the crowd counter, I'm doing the following:
Friday, May 1st - Magic Kingdom (only 4 on the crowd counter)
Saturday, May 2nd - Epcot (it said to avoid MK)
Sunday, May 3rd - Hollywood Studios
Monday, May 4th - Magic Kingdom
Tuesday, May 5th - Magic Kingdom
Wednesday, May 6th - Animal Kingdom
Thursday, May 7th - Downtown Disney
Hope this helps