Your question is truely a tough one to answer. When it comes to shoes there are many variables to consider. Do you go with a walking shoe or a running shoe or sandals? For the amount of walking that you do at Disney I recommend a running shoe. Typically they will have more cushion and support of the shoes out there. When you go to try on a shoe go later in the afternoon after you've been on your feet all day, the reason is your feet swell thru out the day and you will be trying them on once they are swollen.
Make sure to take the type of sock that you will wear when trying them on. Make sure that you also get the right size. When trying them on you should have a thumbs length between your longest toe and the end of the shoe. If you dont have that you will wind up rubbing your toes and that will cause major problems.
Brands:
Nike: Famous for the "air" good shoe with usually a high arch support and an average width
Adidas: uses uva cushioning (high density foam) not as high of an arch support and usually runs wider in width
Reebok: uses uva cushioning normal arch and normal width sometimes an little narrow
Asics: use uva cushioning and gel system. Average arch and normal width (sometimes you can find another width but not usually) good shoe
New Balance: uses uva cushioning a good shoe most famous for have multiple widths available. Average arch.
Saucony: Well know running shoe. Uses uva cushioning, average to high arch support and normal widths (sometimes can be found in other widths)
Brooks: Running shoe. Uses uva wide width average arch support
Yes I know that shoes seem to be expensive but remember you get what you pay for. If you buy the cheaper shoes your getting cheaper quality and in the long run may cause foot problems down the road. The other thing to remember is that most shoes are designed to last 3-4 months, after that you've broken down the support of the shoe and will start to notice little aches.
If your in doubt about what type to get go to a running store that specializes and they will be able to help fit a shoe to you.
I use to run a sporting goods store for many years so I hope that this helps you out.
