My shoulders (and other parts of my anatomy
) put me in the big and somewhat tall shopping areas as well).
I'm not as fond of the clothing and prices at Dillard's as I am of the selection and pricing at Belk's. We have both here and I find Dillard's over priced, even when on sale. Most Belk stores (here, at least) have a big and tall section. There is a
Belk's in Kissimmee but I have never been. Belk is also good about emailing sale coupons if you sign up for them.
I also like
Kohl's and there appears to be a store in the same general area (Hunter's Creek). These look to be about 10 miles east of WDW.
I'll defer to Kevin and others who have had actual experience with these specific stores.