I think you will love Easter. We have learnt to avoid MK on Easter Sunday and we go to Epcot in the day. Epcot is great, large enough to absorb the crowds and if you have kids, they do cool stuff like Easter Egg hunts! MK usually has EMH on sunday evenings so we break from Epcot at around 2 ish and go back to resort for swim and sleep, then head out to MK around 11 pm for the EMH (til 3 am!) We love Easter. I think I am pining just thinking about it, but I really don't want to fall into the trap of "we only go in xxxx month ..."
Looking forward to October though - as long as it is warm I am happy. Where are you staying?