Chrome is easier upkeep on a day-to-day basis if you're not treating them like Phil does.
Wipe 'em down with a Glass Plus wipe and you're ready to roll.
Polished aluminum wheels will oxidize in short order, and will require quite a bit of elbow grease if you let them go too long. This also depends on how shiney you like them.
The upside of the polished wheels is that manual labor that you can do at home takes care of most issues. With chrome, you are $hit outta luck once the pitting starts.
And one last thing that doesn't matter a whole lot when it comes to good, high-end wheels, the process of chroming actually weakens metal where polishing actually strengthens metal. But that's a whole 'nother subject on metallurgy.
