I chose Beserker, I liked the charm and fear resistance at level 6. He was a ronin style guy, but still had honour, if he ran in fear or attacked his friends we would commit suicide. I never got to level 10, but I liked the "thousand yard stare" feel to the intimidating presence and at high level the reaction riposte attack would be appropriate too.
We were new to the game and thought that exhaustion levels dropped during short rests, we also thought each source of bonus actions stacked. So the two main issues around beserkers being sub-optimal were addressed by accident. By the time we found out we did not bother to change it, since he was a well-rounded character with skills in diplomacy, performance and calligraphy, he was not exactly a min-max munchkin.