Logan: You wanted the animal, Colonel. You got him.
Logan: I didn't call him 'blob', I said 'BUB'.
Victor Creed: Nobody kills you but me.
Wade Wilson: You know, I love this weapon more than any other thing in the whole wide world you wanna know why?
Victor Creed: No.
Wade Wilson: It's memorable. Sure it's bulky, tough to get on a plane. You whip out a couple of swords at your ex-girlfriend's wedding, they will never, ever forget it.
Victor Creed: That's funny Wade, but I've think you confuse me with someone who gives a shit.
Wade Wilson: Right well it's probably not as intimidating as having a gun, or bone-claws or the fingernails of a bag-lady... Manicure?
William Stryker: Your sentence was carried out by a firing squad at o eight hundred hours. How'd that go?
Logan: It tickled.
William Stryker: You boys tired of running? Tired of denying your true nature?
Victor Creed: What do you care?
William Stryker: Oh I care. I care because I know how special you are. How valuable. Look you can stay here locked up like freaks of nature or you can join me. I'm putting together a special team, with special privileges. Now tell me, how would you like to really serve your country?
William Stryker: Don't worry, we'll stop him.
Weapon X General: Really? You just spent half a billion dollars making him indestructible.
William Stryker: All the horrible things in your life... Your father, the wars, knowing that the woman you loved was hunted down. I can make all this go away. Join me, and you will have your revenge.
Victor Creed: Do you even know how to kill me?
Logan: I'm gonna cut your goddamn head off. See if that works.
William Stryker: I can't take Victor down myself, Logan. To kill him you're going to have to embrace the other side. Become the animal.
Chosen answer: Her power works by manipulating parts of the mind. Since Victor and Logan both regenerate her power can't affect them because they essentially "heal/regenerate" the part she is manipulating. Granted Prof. X threatens Logan with this in the original movies, but he is much more powerful, or could have been bluffing.