Visiting in April

We are taking our kids (4, 1.5) to Disney. We are leaning towards April, around Easter. I know that will be very busy. However, curious to see thoughts about going later in the week, starting on the 9th or 10th? Or should we avoid these times all together?

We were originally looking at the first week of February, but like the idea of warmer weather to enjoy the resort pools.

Thanks in advance for any insight!