So this is my top 5 (with my favorites quotes)

1.Prince of Persia:Warrior Within

" Who do you think you are?"
"I am the Prince of Persia."

"You cannot change your fate Prince"

2.Hitman Blood Money

The name "Agent 47" is just a whisper on the lips of the dead... because if he comes calling for you... you will never even know... until it's too late. Then, like a ghost, he'll disappear. A phantom. A legend

3.The Legend of Zelda:Ocarina of time

"The rising sun will eventually set.
A newborn's life will fade.
From sun to moon, moon to sun...
Give peaceful rest to the living dead." (Song of Sun poem)

"Can Hyrule's destiny really depend on such a lazy boy?"

4.Devil May Cry 3

"Let's welcome Chaos"

"You... are not human, are you?
Who knows? I'm not even sure myself"

5.Splinter Cell Double Agent

"My name is Sam Fisher. I used to be a hero - now I'm a wanted man. I used to hunt terrorists - now I am one. I used to take orders - now I execute them"