He makes a great hero, with all of his inner turmoil and struggle, along with his natural optimism, humor and loyalty. But, I agree that, as a villain, Kyle is usually shown as Lil' Sabretooth...And I hate Sabretooth. Even as a villain, even as a bald, wannabe Nosferatu I liked Kyle, he just has a loveable personality. I hope they don't rob him of that...
When he's sane, he's noble, loyal, funny and incredibly sweet, even as a villain he keeps some of these qualities, like the way he cared so much for Aurora while in Weapon X, even though she treated him like dirt, he still loved her...