I think someone has already said this...
Does anyone find it odd how IS made it that most people with the same affinity have something in common, normally there is one exception but there is mainly a trait.
Thunder: Aran, Tauroneo, Jill, Muarim, Makalov, Shinon, Lyre, Janaff, Gareth.
All of these people are very loyal. aside from Jill and Mak, but Jill is loyal to her beliefs and family(haar included) Mak again is loyal to his family, and the friends that don't wind up hating him.