in general blair woods has shorter routes, at least of the ones that come to mind. warm up boulders are all 10 feet or less, robert e lee boulder is pretty lowball. the disadvantage to blair woods is it's easy to get lost if you don't know the place well. I have a friend who's been climbing at pway for ten years and still gets lost in blair woods. boulder natural has plenty of lowball problems too, hobbit hole and many problems nearby are pretty low.