As I said personal choice, but I would never tell you what not to wear. Because you need to wear what works for you. I do crocs, 20 years, yearly, twice a year, and three times a year visits. I have done 14 days WDW, and 8 days DL, going 8 days DL next months. Crocs work for me. I have tried go walk, new balance, dr schools in the past, and a $200 pair of running shoes, all caused blisters, and once the blister starts it is there the whole trip and it is hurting the hole trip. I always try to start walking three miles a day a month or two before I go to Disney. I would find the pair of shoes you think would work and then walk three miles a day in them on concrete, and see if they work for you. In this family we all use a different type of shoe and swear by it. Actually several of us swear by crocks in the park, but others use go walk, or new balance, or just sandles. It is what works for you.
Also, I will second the person who says a good pair of socks is the best. I take three pair of socks for each day, and no I don't have sweaty feet usually. I need to change them if they get wet from rain, rides, or sweat. I change then at least twice a day and sometimes more. If I keep my feet dry especially after splash mountain and grizzly run than I have less trouble.