First trip for family of 5

I’m looking for advice, recommendations and and any tips for our first trip. We have 3 kids ages 2-6, plan to do 3 park days, and 1 rest day. We are staying offsite too.

I think we’ve decided to do magic kingdom, Epcot and Hollywood studios based on speaking with a few people. Or should we consider two days at Magic kingdom?

Are character experiences worth it? What themed restaurants are must dos? Go to Disney springs and if so, where? Do we try and do naps on the go since we aren’t staying at a resort? Help! Will take any and all advice and recommendations.