I have stayed at both... I would go with the Sheraton Safari. I like the location better, easy commute to Disney or Universal. Lots of places to eat within walking distance. All rooms had inside hallways... not all do at Sheraton World (only the tower rooms). We had a balcony & the kids loved the pool & slide. The only plus that the Sheraton World had was the fact that it had a mini fridge & pull out sofa in addition to the 2 dbl beds. If space is a concern than the "World" would be better, but for me it wasn't.