I voted for straight. I don't like full bents much, since for some mysterious reason the few full bents I've had smoked wet and didn't pass a pipe cleaner well. (I think my microcephalic head doesn't look quite right with a full bent, either.) I have a couple of half bents that smoke pretty well, plus a smallish, full bent Szabo that's a decent smoker. There's also the gigantic Tim West that is unclenchable regardless of the full bent. I seem to like quarter and eighth bents (if you can call an eighth bent a bent pipe at all), I guess for aesthetic reasons. I'm not sure a quarter bent is enough to help with clenching, but maybe. I have only four briars that I smoke regularly that are actually straight (much to my surprise -- I never noticed!), 6 counting a prince and a Bari Dana with small bends in the stem. My Forever Stem is straight, though, and I have neither a General nor MacArthur. So I guess I have 6 bent and 12 straight, with two of the straights having slightly bent stems.
Just a question of my own here -- what's a Dublin/Zulu, a quarter/eighth reverse bent? (I don't have a Zulu. sigh.)