I did a taste test, too, a while back with Ghiradelli, Callebaut bulk and G&B’s white chocolate, and my preference was for the G&B’s. Ghiradelli is the sweetest, I think, and since white chocolate is mostly sugar and cocoa butter, it would also have a lower cocoa butter content and so a less waxy mouthfeel. I know what you mean about the waxiness of G&B, but I like that it isn’t so sweet and I like the rounded, vanilla bean flavor. But all three work well in Rose’s recipes.
To each her own!