I like the mc that is either completely moral to an extreme based i.e chaotic good or neutral neutral meaning they dont go superman and giving free handouts like warlock of the magus world
Not necessarily OP but i like MC that can properly judje people's actions and attitude and a silent one, someone who do his things unnoticed and act like he can win an oscar
The thing is ISSTH is probably one of the best Novel available so he is a bit on top of everything i think ^^ Apart from Meng Hao (who's the best) I like the Chu Yang type (TTHN).He is cunning,smart and a pretty op guy without being a total douche