I'd vote neither. Big fan of silver painted wheels. Only cause I'm lazy and they are easiest to keep clean. IMO, gray wheels look like they have brake dust permanently baked on. Polished wheels look like a weekend with a grinder to keep them clean.
I'm the same. I've seen almost no chrome rims that I like. They usually make an expensive vehicle look like a toy. Black Torque II rims on a black vehicle are the only combination I've seen that looks good. Alcoa Forged aluminum looks the best to me.