I think the lifeless Lord suit Adrian the best because it life and death and the Dread Lord is just dread So a hybrid between both would be a good idea so would be life and dread
Charon is a good child. untainted by the world evil machinations. being a dreadlord basically introverted beings more insecure.. so i choose 2nd option
Dread and uboth, allow them to actually have offensive capabilities so they can better defend and protect. Dread could mesh very well with Sirius and Kanalon
for dudu i go with uboth-sathla, it looks more powerful and interesting....
for charion.... I liked both since they seemed interesting to me, but I would still go with dread overlord