Lelouch 'Zero' Lamperouge vs. Light 'Kira' Yagami

Here's an argument you run into a lot with the anime crowd.

Lelouch: The banished prince, Lelouch would go on a campaign to unite the world and topple his father's empire; aided by his mystical geass. This power of the king allows Lelouch to force anyone to obey any command he gives them, no matter what.

Light: A brilliant student, Light would go on a campaign to remake the world into something he found pleasing, with himself as its god, using his powerful Death Note. This book allows Light to kill anyone on the planet, so long as he knows their true name and face.

So who will it be? The fallen prince or the student? The Revolutionary or the Pseudo-God? Geass or Death Note? 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).