avykins:
Sephiroth except after I sishkababed Aeris I would cut Clouds throat while hes still too stunned to react.

I would be Sephiroth mainly because I am just as awesome as him.

But all self-praise aside, he is by far my favorite character from any game ever.

Indigo_Dingo:
A pokemon trainer. You may laugh, but think about it - I control supremely powerful being totally, and can hone them to become instruments of death.

If I was Sephiroth, I would be a pokemon trainer. Then I would be even more awesome than ever.

Think of what would happen if "divide by zero" met "what everyone raises Chuck Norris to be". Yeah, thats me.

Kane,

Because you can't kill the messiah. Peace through power. The technology of peace.

Or Xan Kriegor,

Because I am the Alpha and the Omega. Flesh is a design flaw. Your life is terminated.

Methinks I should put on my asbestos suit before saying this, but...

Squall from Final Fantasy 8. I know he's a whiny twat but so was I at that age and he's got better hair than I ever had.

IMO Lara Croft is very touchable :D

Ryu. Link. Samus. Kyle Katarn. Sam Fisher. Snake when he was cool w/o tasche.

Abe from abe's exoddus! :)

Control people with my mind by chanting at them and

when i'm done i just keep chanting and blow them into bits.

Or Mr. 47 from Hitman because he's icecold, bald and wears a proper suit.

nothing like that bullshit some other main characters have to deal with :P

it would also seem like he's always fit and well trained without ever working out,

probably something genetical.

Hmm.. Sam Fisher has some cool moves, so if i were him i'd be able to knock people out with one punch. Judo Chop! It would be great to be the protagonist from Portal. As long as you get to keep the portal gun. And the cake.

The Grim Ripper fron Guitar Hero.
Think about it, awesome shredding skills, the power of death, and many Blue Oyster Cult references follow in your wake.
Lovely.