I always avoid parks (any of them) from Mid-July through Mid-August, and especially on the weekends. This is the period of time that my group of friends has labeled as season of "guilt trips" -- what is a "guilt trip" you ask? This is when the lazy parents finally realize that the summer is quickly coming to the close and they have done jack squat with their kids all summer. So, because they feel GUILTY, they take a TRIP to the local amusement park, along with the other families filled with parents that are doing the same thing.
While at the park, which is a lot busier than normal thanks to all of the "guilt trippers" -- they complain about the long lines, high prices, warm temperatures, and other things that you really cannot control all the while making lives miserable for anyone, and everyone, around them. They (guilt trippers) feel that they are above park rules, cut in line and are just plain out obnoxious - BUT, because this IS their ONLY trip this summer, they are ENTITLED to this preferential treatment.
We'll (my group) be visiting SDC again once we get to Fall Festival and the park is back to normal. I love that time, because the AP holders come back out of the woodwork and actually KNOW and APPRECIATE the park and see it other than a "last minute trip" like a lot of the General Public.
Also -- like it has been said on here numerous times. Avoid Moonlight Madness like the plague. There is a reason it is call "Madness"