Just looking at the schedule, I'd go Sunday 06/16, Monday 06/17, and Tuesday 06/18. All 10am-10pm operations. If you can swing it, just do FL for all. How often do you get to go to the park? We don't even ride a ton, but when we go to the parks we always buy FL+. We can walk around end enjoy the park instead of waiting in line. If I had to do without it for one day, I'd pick the middle day. Just chill by the pool or something. Beer/cocktails included.
FL or bust. Life is too short. (if you can responsibly afford it)