We are planning our second trip for May, and I think we are going to skip Fantasmic a second time. It is a time suck, either eating a TS we wouldn't otherwise eat to get the reserved seating, or a long wait in line to be sure we get in. We did Wishes and Illuminations last trip. Just planning Wishes for this trip. We can do more nighttime stuff when the kids are older. I would say if you want to plan for two, plan for Illuminations, but it won't ruin your trip just to do Wishes. Or none, for that matter. Go with the flow and see how it goes. Have fun!