Looking to keep them in good condition for a few years, I'd go for single spoked like on the type shown, but I have a problem with 7 spoke wheels on a car with 5 wheel fixing bolts! Having said that, I have got used to my 19" 7 twin spokes I use in summer, a proper pain in the bum to clean though! I use 18" 5 single spoke wheels in winter, very easy to keep clean.