Mikeyfell said:
I'd be an earth bender no doubt.
I don't have enough finesse or agility to bend air or water, and I don't have the control to bend fire.
I'm mostly stubborn and solution oriented, that spells Earthbender to me.
But I think I'd be able to bend blood though, I'm reminded of a scene from the third X men movie where Magnito sucks all the iron out of that cop's blood. I'd practice until I figured out how to do that.
As far as a special attack for Airbenders I don't think they need one. There's always air. always. They can fly (Even though Iroh Firebent himself into a jet and flew around like Iron Man) they can bend air in a way that will let them throw other stuff around, If they were determined enough they could bend the air right out of people's lungs and let the suffocate.
Airbenders have a huge advantage already.
Pew Pew lightning seems quite overpowered to me really, I'd like airbenders to have some special thing of their own since while I do love the movement and fights they engage upon, seeing them puff out some air pockets every time seems a little dull.
Some of you suggest bending the weather as a subcategory.. I don't see that viable at all. Clouds are made of water -> waterbenders can use it, Katara did it when she went to face her mother's killer - she bended the rain falling down. Summoning a storm? yeah I see firebenders use that for zappy powers. Sound makes sense I suppose though I don't see that too be particular useful [seems kinda lame too xD].
The idea of time manipulation I had would be justified by the fast-movement airbenders can use - a master of air bending may be able to manipulate molecules around the area to slow down a location. I see some sort of connection to time though it is a little vague isn't it xD.