Good question -- and a bunch of good answers. (I imagine my cob is dead and gone but currently it may be hiding out somewhere with, I assume, my one wonderful estate pipe -- my home really isn't so big that I should be so stymied by this.)
One thing I'd toss into the mix, I've had some wonderful, long, talk-filled smokes while camping (around a fire), and I know at least once someone with me was smoking cigars and couldn't believe I still had plenty of tobacco left when he was all done. So I'd argue that a big-bowled pipe might be a good choice for those safer moments. But if you want to take one hiking, then a cob or at least a pipe you won't be broken hearted over if its breaks seems pretty sensible.
One thing I'd toss into the mix, I've had some wonderful, long, talk-filled smokes while camping (around a fire), and I know at least once someone with me was smoking cigars and couldn't believe I still had plenty of tobacco left when he was all done. So I'd argue that a big-bowled pipe might be a good choice for those safer moments. But if you want to take one hiking, then a cob or at least a pipe you won't be broken hearted over if its breaks seems pretty sensible.