What's BTSR?
Also, Colorado has five camps I am familiar with: Ben DeLatour, Peaceful Valley, Alexander, San Isabel, and Spanish Peaks. If you want a more SW feel to your experience, try the last two. If you want to be rained on each day in the afternoon, The second and third are your best options. If you like a rocky mountain area close to white water rapids, BDSR.
Up to the boys ultimately, but the only camp I can say NOT to attend is Lewis and Clark in SD. And the midwest/upper midwest won't provide too much comfort from the climate and gets pretty buggy up north.