It depends on a number of things. EMH, both AM's and PM's, drive crowds to any park, thereby making them more crowded. On the other hand, pre/post EMH days will lighten the crowds. Additionally, special times of the year, holidays, major events (marathons, Gay days, Pop Warner, etc) do have their respective impacts also. I have recently relied on TGM to suggest what park/what day/night. So far, I have been very pleased with his suggestions, which take the above, among other factors, into consideration.