I've got 1 with ASD and 1 NT 14 and 15 but go with DH as well.
For both the kids wifi seems to be an essential - DS once suggested camping, I just booked a couple of days glamping as I was quite surprised and immedately it was where's the electricity
followed by a scream of there is an insect in the bathroom, I am never using it.
Food wise my DS loves all-inclusive food as you can get plain food and you can eat it the same every night at the same time on the same table as well as unlimted ice-cream and snacks. He quite likes the waterparks with slides and those holidays are super easy, used to do the First Choice Splash World. From one we did a day trip to Gibraltar to see the monkeys which he loved.
He also likes wildlife holidays where we have seen various wildlife - been to Finland to see brown bears and reindeer, around Norway and Sweden staying on alpaca farm and saw moose in wild and seals, Australia (dolphins, whales, cassowary, possum, pademelon, bettong, kangaroo, wallaby etc) and Costa Rica (where he loved the rainforest and sloths, ants, toucans etc).
This year we are do isles of scilly though that gets booked up way in advance and North Devon. Isles of Scilly has lots of cycling, a tropical gardens, boat rides, canoeing, wandering round rocks / nature etc. North Devon has lots of beaches and some wildlife like seals and dolphins can see on boat trips. We are staying at a place with a pool and wifi 
I asked DS about cruises once and he said he'ld like that as he would need to get off but a constant aeroplane ride would be better
I explained to him there would be excursions off the boat and he said nope. And then he said they do have wifi don't they? I wasn't convinced his cruise was much different from being home but would be easy I guess (well unless kids are fighting or seasick) and maybe if it was scenic.