Our family enjoys both of these restaurants, but if I really wanted a special dinner and had to choose between these two, CG would get the thumbs up.
Are either of these choices realistic with kids? Absolutely! Our DS was 6 when he first ate at both CG and the Brown Derby. He is now 11, and still loves them both.
CG is a little more magical, as it sits up so high and the view is spectacular. Timing your dinner to view the fireworks can make for a really special evening. We have found the wait staff work hard to please children here, and kids can draw on the tables (play tic-tac-toe, hangman, etc) as the tablecloths are topped with white paper. I will never forget our DS's first dinner here... every time our waiter communicated with him, he would kneel next to him so they could talk at eye level. That left an impression on all of us.