I was in MK yesterday. Arrived at 5pm with 3 FP+ reservations - rode every major ride before 8pm, then had dinner at Pecos Bills, rode Buzz again and found a spot to watch Celebrate the Magic and Wishes. A great night with moderate crowds, but easily navigated with a plan and 3 FP+.
This morning I did AK - arrived at 8:30 and rode KS twice, Everest twice, saw ITTBAB, rode Dinosaur and saw Finding Nemo (at lunch at Y&Y). Back at the hotel for a break and then on my way to DHS where I have FP+ for Star Tours, TSMM and ToT (will ride RnRc in single rider) then see Fantasmic.
So, the week after Easter this year the crowds are not too bad. With Easter earlier on the calendar next year, it might be worse.