Assassin.
I dont really like paladins but self found hammerdin is a blast to play.
Druid has always been pretty disappointing for me to play too. Fury druid is outshined by frenzy barb and zealot, even with good gear (eth tomb, etc) couldnt do ubers. Summon druid is shit. Fire druid basically doesnt exist and nado druid gets to spam 8k physical damage at a derpy 11 frames. Zon has shitty fcr but she gets lightning fury, druid gets oak sage lol.
Made a trapsin last ladder after never playing assassin and was genuinely surprised at how good the class was, how strong traps are even with shit gear. I actually geared her up decent with zero jsp gear or botting, it's amazing how well dual claws work because you can just buy plus 3 trap claws from anya, get a plus 3 amulet, then make lore and treachery and you've got level 32 traps for the cost of a lem rune lmao. Average sin torch goes for little too. I didnt even get infinity and the kill speed was still acceptable. I think assassin is right up there with hammerdin for easiest character to gear for good killspeed.