1) I think WDW is autism-friendly…BUT I will also say that doesn’t mean every individual with autism would agree. Some individuals may find some or all aspects of WDW very challenging or unpleasant. It doesn’t work for everyone.
2) no
3) yes, I think so. Others may have a different opinion
4) I know child-sized life jackets are available at resort pools and the water parks. I’m not sure about adult sizes.
5) no
6) ok
7) that is subjective, individuals have different taste preferences
8) no, not all Disney characters have meet & greets
9) again hotel preferences can be subjective, my family likes the value resorts just fine but I have never stayed at a deluxe resort
10) I’m not sure what you are differentiating between “hotels” and “resorts” — WDW-owned hotels are considered resorts, though there are other hotel chains in the WDW area, some may be good and others not so good