I would like some advice as well. My best team (57k power) is light, but I'm slowly building dark as well (51k).

Himes available/in main party :
* Light (SSR) AW Sol, Tsukuyomi, Metatron, Raphael; (SR) Diana
* Dark (SSR) Satan, Hades, Osiris; no notable SR's (not even Beelzebub or Bastet).

I was considering going for Michael, so I can manage easier bursts after using PF on Shingen (and as a future investment for her AW), but at the same time, I feel Amon could really up my dark's overall performance. Any other suggestions would be greatly appreciated !