Opti coat on the wheels for sure, here some Opti coated wheels I did.
Opti coat doesn't add gloss and add's a bit of satin to matte wheels but test in a inconspicuous area and see if you like it. CQuartz actually has a more darkening effect which is great on regular clear coat but not so good on satin and matte/frozen paint schemes.
Reference: I am both a Opti Coat certified installer and CarPro CQuartz certified installer.