In the world of motorcycle vernacular, everyone has their own 'poison; for polishing the metal spoke wheels. Mother's Mag polish, Flitz, Bluemagic and I think there is one called Blue Job, not to be confused with 'hand job' which causes endless snickers among the brethren.
I prefer Mother's Mag, but then I haven't used all the others. But you have to use some kinda wax after Mother's, because the polish won't last. The tendency is to stop after you get your sheen, but over time it will fade. Flitz claims their sheen will last six months or more. A lot I'm sure has to do with humidity, climates changes etc.
Kevin