Fom an aestetical point of view I would Would prefer the 322 rims. These are 18" rims and quite expencive - since the car feel quite "stiff" on bad road conditions having run-flat tires - I would go for the any of the 17" rims instead and used the extra money for an Xdrive option. Of these I think the 319 looks nice. From a practical point of view the standard 317 are the simplest to keep clean.
Just my 2 cents