I love Slayers, Lina Inverse is one of my favorite characters, simply because she is just as quirky as she is powerful.  A powerhouse title that inspired so many magical/insane characters in the anime world.  She was also a character I used in my crossover panel this weekend, pitting her against He-Man...feel free to comment as to who you think would win and why on our facebook or twitter post.  Slayer has multiple seasons and films.  So it's a lot to take in, but If I can point you in the right direction, I am a happy camper.