To be honest, there aren't many good Chinese places in Orlando (I love Chinese food, so I've been looking). I've never understood why, considering the numbers of Asian residents and visitors in the area, but we don't.
I like Nine Dragons at Epcot, but some people don't, and they don't do take out.
I would suggest that you ask the lobby concierge for a recommendation when you check in. At the very least, they may be able to tell you who NOT to order from, lol!
Be aware that any time you order food delivery from an outside restaurant, you will have to meet the person in the lobby of WL to get your food. They are not allowed to deliver to your room.