Zagar is gar. He has a nice Revival soul skill.
Bander is fast as balls, but burn kinda sucks.
Alna- she has an ugly face.
Belus- Cool puppy, but you'd need two more for him to be really useful.
Overall would choose Zagar; nice as a single copy soul skill, pretty cool if you ever get a full set. Belus if you absolutely hate Refess for some reason.