Mike, I think your explanation has merit. Accordingly, I'm a little surprised that Shoal Creek (circa 1979?) has such staying power.
Barney,
Your Flynn comment is interesting. I enjoyed Cascades immensely a couple of years ago, but as I've had the opportunity to travel about a little more and benefitted from the hospitality of certain treehouse members, I would place it a little farther down both lists. It has some plain holes, uninspiring green contours and pedstrian bunkering. I hope my host there doesn't see this.
Regards,
Mike