According to the configurator, you cannot option a Clubman JCW with the Dynamic Damper Control suspension and 19" wheels. If you want the Dynamic Damper Control set-up then you are forced to go with 18" wheels.

So which option is better? I like the option of changing the suspension settings but also like the look of the 19" wheels better. Another consideration would be the longevity of the the Dynamic Damper Control system (just another thing that can break) where the standard JWC sport suspension seems fairly foolproof.