Duh, the Rope. That way you benefit from everything the class has to offer. Not to mention with a Bow, your using up a million arrows. One AV for 9 hits just takes 1 arrow. Besides, if you want to use a Bow. Just be a Sniper or something. Rope is way more thematic, and more beneficial. Hands down.
DDTT Rope (If want for all purpose.) The above mentioned Rope is also very good, if you feel like investing in FLEE. From my experience, better way to go anyway. From a non-expensive standpoint. I made a +8 Queens Whip before for someone who was once close to me, and it was pretty strong. Just not as fun, slow as beans really.