You know, the typical Fire, Wind, Water, Earth elements. Have you ever felt yourself having an affinity with one of these things? Let's leave out Light and Darkness since those are a little to ambiguous for their own good.
I've always felt I've had an affinity for the wind. I'm slightly fickle, love freedom of movement (desperately wish I could fly) and generally love speed (though I, myself, am a very slow person. lol)
Remember: This is your own opinion. No test and no one else's opinion on the matter is relevant. If your reasons are the same as someone else who finds themselves to be of a different element that doesn't mean either of you are wrong.
So what would you say your elemental affinity is?