ORIGINAL: Cossack
I can't recall a broadhead that will give you a "fast kill." The all cause hemorrhage, rather than shock, like bullets, which usually takes a while. On rare occasions a 'spined' deer may fall on the spot but thats unusual. I rely on braodheads that give me accuracy and good terminal performance (penetration & sizable wound channel). Four bladed, compact braodheads seem to do that best from my X bows. My current preference is Slick Tricks magnums.
another vote for the Slick Tricks. You will no doubt find this is a highly opionated topic, folks have something/anything that works well for them tend to be brand loyal.