I'd want to be Samus Aran. I've had dreams before where I was Samus and I used the suit, so I got to experience what it was like to shoot beams and swing from grapple points in Magmoor Caverns. Samus has powerful weapons, an advanced suit that couldn't even exist by today's current technology, and she can run and fly at supersonic speeds. This might mean, of course, that I'll be an orphan, suffer from PTSD, and be responsible for the genocide of many living organisms, including Metroids, Zebesians, X parasites, and all other life on those planets. Then there's the dark dimension of Aether, which also suffered genocide, simply because I took back the energy sources to Aether itself.