Most hated:
Sonya (for being a top tier in every MK game)
Geras (for being an unnecessary addition to the roster, i'd rather see Tremor come back with his sand and rock type moves)
Jacqui (boring character design, I feel like she took a spot that would belong to one of the classic characters. NRS made her top tier so people actually play her, if she was mid-tier 90% of jacqui "mains" would drop her)
Least hated:
Jade (for some reason i never get salty when i lose to a Jade player, i accept that I got outplayed, not out-cheesed)
Johnny Cage (same reason as Jade)
Kung Lao (that's my boy, whenever i play other good Lao's and lose to them - I always learn something new to implement into my play style)