Tested
Dark/Dark
Dark/Fire
Both level 22 with common 25 IO slotting (and A Steadfast KB Protection IO because only a loon plays that set without it.)
Difficulty: 0/x4
While they both performed well against a number of foes (Council, Tsoo, Banished Pantheon, Family), the end usage was still very high-end usage. After adding a Miracle proc to Heath, however, all of the end issues cleared up significantly (Miracle/Numina procs at minimum slotting levels are my “required slotting” on every single character before I put one drop of XP on them on live servers). I liked the way that both performed and can see one of those options joining my play rotation at some point.