I’ve been on vacation for the last month and for my vacation I sat home(for a month) and played Conan:Exiles all day (and night). I literally only slept every other night. During this time I did a lot research into the current state of the thralls in this game. Here’s my conclusion:
At number 1 we have the infamous Cimmerian Berserker. Why? Because they have the highest damage versus vitality pool. Also because they’re easy enough to farm.
At number 2 we have the notorious Dalinsia Snowhunter. Damage output is slightly less than the berserker, health pool slightly larger. Also Dalinsia has a decent ranged attack bonus so if you give her the STR based bows she makes a viable fighter/archer. Dalinsia would be at number except for the fact that she is a rare find.
For number 3, exclusively as an archer and deployed for defensive purposes only…Beast Master Teimos. His health pool is pretty much s**t compared to the berserkers and Snowhunter but they start with 30 points to agility, have a decent ranged attack bonus and they still level up really fast compared to the other thralls. So level them up to at least 15, takes about a half hour maybe. This will increase their health pool and give you a few perks to reroll if need be, and then place them in an archers position. Also easy enough to farm.
I don’t bother with Lian /Janos but I’m sure they’re far better fighters than Teimos possibly even a tie for the berserkers.
At dead last is the Relic Hunter Treasure Seeker. I gave them a fair chance, they just don’t measure up as well as any of the above although they are very easy to farm in quantity. They have a decent armor rating due to their Grit, which gives them some durability but their damage output is lacking, which means the mobs get to beat on them for longer. They are viable thralls, but the Cimmerians are better in my opinion.
All this is based on me in an encumberance, STR or AGI build, no authority, fighting side by side with the thralls.
Also the volcano fighters(just his, Eri, Daicus, Spinas are a tie for second with the Snowhunters. On average they have a similar health pool to the berserkers, slightly lower damage output and still are random spawns making them not as easy to farm as the berserkers.
I will also say that it has been said that the volcano thralls make the best Resurrected Corpses but the berserkers and Volcano archers are equally as good as the volcano fighters for the Shallow Grave.