Aesthetically; Kyrian seems like the only plausible choice; I'd also like to see the Uther story play out...
Combat ability; Necrolord one sounds like the least situational one and the most usefull one in raiding as we know it.
Utility; Venthyr, cause nobody likes being bound to a wheelchair.
I already hate it, but i think i'll go with Venthyr. :/