Guys if you're going to move the Braves they need to go back to Boston, Milwaukee was their interim stop.
Anyway I like the Detroit idea as the 6th team in the "West" none of the other squads listed have anything like their history. Cobb, Gehringer, Kaline, Morris, Whitaker, Trammel, Gibson and Cabrera just to throw out some names. And since Cinci and Detroit are basically as "East" as the other you could swap the Reds west if you preferred.