I would be the lord of water. I would have the option to turn into water (imagine the Human Torch but with water), I would have the power to completely manipulate water (not create it, although it would seem like I could as I could pull moisture from the air), being a liquid I could stretch (but I have to remain the same volume, like actual water), as I advance in power I could also have power over Ice, and finally, my name would be Typhoon at first, and later, Frostbite.
Yes, I have thought about this quite a lot.