Sesshomaru vs. Itachi

A common theme in anime/manga is to have one of the main characters have an older sibling who's way more powerful then they are. And if they're antagonistic, mores the better.

Sesshomaru: A powerful dog daiyōkai and feared throughout the feudal world as the ruler of the western lands, Sesshomaru is the older brother of Inuyasha.

Itachi Uchiha: A powerful ninja outlaw made infamous for killing his entire clan and leaving only one member (his younger brother) alive, Itachi Uchiha is the older brother of Sasuke Uchiha.

So who will it be? The Demon or the Super-Ninja? Magic Swords or Magic Eyes? Simple Back-story or Convoluted Back-story? Only you can decide...

WHO! IS! DEADLIEST!

(Disclaimer: Just to be clear, these two combatants were created / are owned by people far more creative / wealthier then me. I have made this, not for profit, but in the hopes of encouraging spirited discussion among fans. Please support the combatants official series. Thank you, that is all).