Unicorns and Centaurs and Faeries, Oh My!

Okay, so as the mom and stepmom of four boys, I have spent a lot (and I mean a LOT) of time playing the "Who would win in a fight?" game. This applies to superheroes (ala, Q: "who would win in a fight, Batman or Superman?" A: Superman, since Batman isn't even really a superhero, he's just a rich dude with gadgets and a grudge). But it can also be applied to a vast and eye-opening array of random things (ala Q: "who would win in a fight, Sprite or Cheeze Wiz?" A: Sprite, because if you shake it really hard it spurts out like a cannon blast, not to mention its impressive corrosive powers, whereas Cheeze Wiz is just orange deliciousness). As the kids get older, the responses get more and more coherant and scarily well thought out, but no less ridiculous. For a bit of HBM fun, I ask thee:

Of all the magical creatures, who would win in a fight, and why?

At first, right off the bat, I'm thinking unicorn. Mainly, because I am a child of the 80's which was the most magical of times for the unicorn. I had thousands of unicorn stickers (puffy, holographic, glittery, scratch-n-sniff, you name it), posters, stuffed animals etc. But after much internal debate, and a short period of mourning, I'm left with the sad realization that a unicorn is really just kind of a horse with a horn stuck on its head. Why is that more impressive than, say, a deer, with TWO horns? So, Im'a throw my lot in with the siren. Mainly because whatever anyone else tries on her, she is just going to use her awesomeness to lure you into her trap and smash you on the rocks (of DOOM! Sorry, that's a phrase my kids use all the time. Slap it on the end of any noun FTW. Read my erotic romance novel...of DOOM! Mwah hah hah hah hah!)

So, what do you think? Magical creatures cage match: Who comes out alive????