Sean's probably right. Recently I have been just riding my SS because my FS is in the bike hospital (cracked frame and busted headset). I have visited all the parks I usually ride and I am having a blast. Granted I have to work harder on some places like Ringwood, but I was surprised to see how much stuff I was able to clean that I thought it was not possible to do it with a SS.
But if I had to list the more SS friendly parks then: KVSP, Deer Park, Lewis Mo, Chimeny Rock and from what I remember The Tourne too. Oh, and the one near Montlcair State .
i think the tourne is a pretty solid SS spot, but never ridden it on the mary. moving further west it's just not worth the trip unless i'm wicked local there.
i love KVSP on the SS...the needle, which i still haven't cleared on it, is a bit of a burner. LM is fun too...all the ups and downs (along with HORRIBLE chatter of the blue trail...unless you have a shock which i don't ) make it a hell of a workout. i would add mahlon to that list too. i've found that park to be a ton of fun.