What size Bottle Rocket do you ride? I'm 6' 2" and was thinking about a medium frame.Depending on how big you are. I'm 6'4" and I love the Bottle Rocket for a play bike, but I wouldn't do long trails on it. The Preston on the other hand is a healthy bike for a "do all".
As you may notice, there are more bikes than you can ever ride. Find what your local shop carries and pick one from them.