I would either be Diaruga, Aruseus, or Entei. It would be fun to control time, and if I was Aruseus I'd be able to make anything whatsoever, and as Entei...well...I'd get to bark and have volcanoes erupt. I'd be able to run at insanely fast speeds, and it would be just great to feel its strength. As for where I'd live...as Entei I'd be a wanderer, as Diaruga and Aruseus I would just live somewhere off in the distance and try not to interfere with the lives of other species.