If you could be a Water, Air, Fire or Earth Bender, which one?

Water all the way cuz i could drown everyone!!

Not really.
Eventually, all the water would not fit on Earth.
If I was an Air bender though, I would not let you use oxygen.
Fire can't burn without oxygen.
H2O---> water
And obviously, we need oxygen to stay alive.

Earth is a true opponent though.