Personally, at the beginning I used Blessing of Light thinking the extra boost in defense would benefit my team for their next encounter. After a while I started using Weapons of Light and it wasn't until playing Iron Banner where I noticed I wasn't only getting more score but my team has a better chance with fire fights. I'm tempted to experiment with Armor of Light for the occasional enemy jumping in with a fusion rifle or a shotgun. Thoughts? Edit: apparently everyone has Saint 14 haha