A disproportionate number of votes towards fictional zanbatos (horse-slayers ; swords that sport a blade that is as large the person wielding it). Kinda funny because that's the way you would describe how the weapon looks—disproportionate.
Well, here is my preferred horse-slayer, the
guandao (a Chinese-variable halberd).
...and just because this guy is so freakin'-cool, he also looks bad-ass brandishing the "Northern Shaolin Kung Fu Hook Swords".