Is it worth it to take Sentinel instead of my ability score improvement?
I am currently playing a level 2 fighter, and due to the fact that I went with a variant human, I got a feat. I decided to choose polearm master, and decided to wield a spear in one hand and a shield in the other, paired with chainmail and the defense fighting style. What I am wondering is, that I’ve heard that sentinel pairs nicely with polearm master, is it worth taking it over an ability score improvement or another feat? If another feat, which to choose?