Healers, Heartrenders, Squallers, Tidemakers, Darkling, Tailors, etc.
I think being a Tailor would be cool, because you could change how you look. Could you imagine what jurda parem would do to their abilities?
Then again, pretty much any grisha power would be scary with that.
If we're talking about pure fighting ability I'd have to go with a Heartrender. If not, probably a squaller. Closest thing to an Airbender.
What do you think?