DH and I did Backstage Magic, and it was wonderful! We have also done the Keys to the Kingdom tour, and it was good, but no half-day tour can match what the all-day Backstage Magic is. However, do whichever one matches your budget and time schedule, I'm sure you'll have a great time.
We can hardly wait for our youngest child to be 16 so the DKs can go with us. Looking forward to being able to do the tour at AK.