Six Flags Magic Mountain is a must if you are an adrenalin junkie, the coasters are amazing. This park is not really suitable for very young children in my opinion, you would be better off going to Disney for little ones. It seemed to me that the park appeals to teenagers and older than families. All the rides are coasters, there are no shows as such and no 3d type experiences, just good old fashioned and new exciting coasters.
I loved Batman.
I can't remember the name (Asian name) but the forward facing lying down coaster was thrilling and very frightening, and I still went on it for a second time!
I also thought the entrance fee was very reasonable. As we visited in February there was hardly any queues for any rides so we really got our money's worth.
All in all a very thrilling time.