<snort> Okay, sure. Are we back to pretending that bicycles are F1 cars? ACER is where I used to buy the ceramic bearings for applications that actually required ceramic bearings-- electric motors that spin to +100,000rpm.

You could put literally any 6903 in a bottom bracket and run it for thousands, if not tens of thousands of miles. It's in an application that might see 120rpm. The only real advantage any BB bearing might have over another would be resistance to environmental factors.

The OP is getting noise out of a rather expensive BB after an unspecified number of miles. I have a Shimano Hollowtech II BB that was $22 and has around 18,000 miles on it, as quiet and smooth as the day it went in. This likely has nothing to do with the quality of bearings at all. OP maybe rides in more rain or dirt than I do.