I find that hotel rooms are very competitive around the Disney area, so we never use our miles/points in that area. Also a great place to get a condo which is nice to have vs a hotel room.
We will use miles to fly. On American you might find a one way flight to Orlando for 25k for coach AND 25K for a first class mile saver. I think it is very hard to find mile saver on coach in the summer to Orlando. So if you are going to pay 25k might as well fly first class!
And if you do get a mile saver FC ticket on American you can fly non-stop and your luggage is also free!!
Sometimes we don't even use miles for roundtrip. We might buy a one way ticket and then use miles for the return....just depends on pricing!