Chrome shouldn't normally be polished unless you are trying to remove minor surface imperfections. Wiping it down with glass cleaner is all that's usually needed. .
100% correct. Clean chrome won't get any shinier by rubbing on it. Waste of time. Unless you have a stubborn stain, glass cleaner is about all you need.
I started using Master Formula Metal Gloss after I saw a vendor turn the bottom of a soda can into a mirror. If you want the bike to pop, this stuff definitely does it. Take a look at the website and what they did to the keg.
You can polish up the bottom of a soda can with Mothers, polishing compound, most scratch removers in a tube, and even fine enough sandpaper. It's doesn't take a miracle product to do that smoke and mirrors show put on by the metal gloss peddlers at swapmeets and bike show.