Okay - I've decided to vote for Bartley Ranch. It's not a crowded park, it's full of trees and picnic areas and they have nice bathrooms. Not to mention the history there as well. I'm not planning on reserving a spot though, all parks that allow reservations are $160 per day for 1-100 people and I think that's way too high. So I will get there early and find us a spot at the park we choose to go to.
I vote - 1 BR