User blog comment:RemosPendragon/What are Saints? Pt.1/@comment-1620907-20150327091409/@comment-2253300-20150327181956

I don't think it's a matter of numbers, but rather of visibility. Sister of Battle are always fighting and also have extreme faith, so it makes sense that a large number of Living Saints arise from among them, but I don't think they make up the majority, they're just the only ones that GW is bothering to show us.