LMMMP team

[Apatheist]

2xPaladin, 3xWarlock would be a pretty solid PvE team if you already have level 60 mages to supply water for the paladins. It wouldn't really matter which character was being hit, they're all super tanky. The real problem with hellfire isn't pushback though, it's being stunned/interrupted. Just about every mob pack in 50+ dungeons has some kind of active interrupt skill. It's pretty obnoxious.

Something else to note is a bunch of damage debuffs stack. With stoneskin totem, demo shout and curse of weakness the mobs in SM:Cath hit for like 10 damage.