Go with chrome. I don't like the with with black look. I have a Denali and like that grill a lot. I also like the fine mess grills, like from Speed Grill.
For next steps, do you have chrome door handles? Also, I added the chrome piece right above the license plate. I had that piece and the chrome lift gate handle, but I took the lift gate handle off, it was too much and didn't look right. And now i'm adding Escalade mirrors for the chrome lowers. All subtle but makes a big difference I think.
After that, we will both need a nice set of chrome 22" wheels.