I'd go back to the middle age. Maybe to France, in the early 1700's, taking a modern rifle and tons of ammunition with me. Doing some "evil magic" to all who dare to stand in my way until they all deify me.
Oh I'd had a great life... and wenches... a castle.. a summer residence... a dog... and a small Island I'd call "bretonia" just for the fun of it, to go hunting every now and then.