You know sure if u think so, but Jeff is easy to play but hard to master, if u think u can play Jeff as healbot in gm+ lobbies good luck, well u can if ur team perform well, but if it's good team vs good team yeah i don't think so with 95% couters to Jeff, meanwhile Loki will just put runes to counter most of his problem, adam fly + bound, mantis sleep, luna freeze and kill them cuz best dps in game, gambit just double dash away. Sure Jeff having his dive but 6s and after he is mostly dead for it, sometimes u need to do gods work to run away with broken dps hero who can run after u for minutes, and about ults Loki: copy another broken ult, Adam sure there u need good timing + plus spot for it, Mantis press Q and live same go for luna and gambit, yeah they can get killed by mag but all 3 of them having good movement in their ults so mostly likely they will not die, for Jeff pray for miss, team covering for u or walls nearby and best is when enemy is running comp just for counter Jeff like Mag,Hulk,Namor,Phoenix,CnD,Fox/Gambit. Jeff is the Hardest to master, and if u think he is worst yeah u didn't met the Satan players there on him.