I can not speak for any of the high end bearings or most ceramics.
I have ran TKO, avid, Boca, proteck, stock manufacture, and a few others.
I prefer Answer RC bearings
Maybe it has something to do with the price, maybe. But they are high quality. Some of the bearings from the companies listed above might be better in quality, but not by too much. But I guess that I might be a bit bias due to their higher price tag.