There are several soul categories for enchanting in Skyrim:
Standing aside these, there is a category for sentient beings, Black souls. I have two questions regarding these:
- Are all black souls equal in strength? Does it matter if I use Master Necromancer's soul, or soul of some puny raider?
- Are they all greater than any of the non-sentient being's souls? For example, better even than Ice Troll's soul - which is toughest monster I met so far.
Knowing this would help me a lot in planning the enchanting.