I'm not sure what you mean by bowling "good", but if you only want to use 1 ball, go for something in the mid-price range that is versatile for medium-oil to medium-dry, and doesn't have a big flip on the backend of it, that will make it easier to pick up corner pins. Some good choices would be a Brunswick Monster Smash/R, Storm Super Charge, Storm Hot Wire, Hammer Blade Particle, or a Roto Grip Silver Streak. I'm probably the wrong guy to ask about picking one ball to go with, but those would be my choices.