Ambidextrous. That said, I divide tasks into left and right ones, depending on ease of use. So while I can write with both hands, I use scissors predominantly with my right hand, and knives with my left. They are pretty equal in strength and in any new task it is really up to the luck of the draw as to which hand will eventually be the more dextrous.
Maybe that means I'm not pre-disposed to use either, I don't know, but it makes for me being very good with my hands. Doesn't matter what it is, massage, sculpture, cooking - I pick up movements with my hands easily and quickly.