Lighter weight is preferable. I wouldn't say I'm looking for bling. But I want them to look good. I'll get an aggressive stance no matter how I go but I'm definitely wanting performance first, then looks. BUT I am not paying 6k for a set of wheels. Just won't happen.
So do the best you can with that info.
I wouldn't strap a set of 22s on my car again for FREE. And I don't want to go down to 19s. If 20s work well on the ZL1 I'll accept it on mine.