Looking at specifically dark mastery and soul mastery, they have almost identical powers with most of the stats in Dark Mastery being significantly more powerful. Specifically, hold duration, the debuffs from darkest night, and tentacles. There's a lower CD on soul darkest night but the stat discrepancy between them really makes that not matter.
Other sets have a lot of similarities(elec/mu for instance) to the patron sets, which make choosing patron sets a little less appealing, which is bad since you need to do an arc to even access them.
Thoughts on an approach to this?