who actually qualifies as the worst defense against the dark arts teacher harry potter ever had? because we have:
quirrell - probably an average teacher, was also literally voldemort
lockhart - taught them nothing but more for vanity reasons than anything?
lupin - obviously the best, no contest
moody - literally a death eater who used people’s fears against them and once turned a kid into a ferret but i mean nobody complained so?
umbridge - taught them nothing but for evil reasons, torture and abuse
snape - i mean i’m not even digging into that minefield of moral complexities; he wasn’t the best teacher generally but also that was more cos he treated 90% of students like shit rather than not teaching them so idk