Tanks
I hate to be thr guy to go against the grain, but let's be honest, tanks are tanky if you build for tankiness and utilize their kits effectively.
My minimal surviving time is at least 12 seconds when using
etc etc
Even when I face check a full team solo to ward dragon or baron I'm guaranteed to survive at least 7 seconds and do enough damage to stop their attempt, giving my 4 teammates a chance to steal until I revive.
And it's not even full tank or I'm sure my survivability would ho up 10 fold. I always have at least 2 or 3 hybrid items such


In a winning team fight where I initiate as Wukong, Sett, Volibear or Darius and get focused killed I'm normally CC'd for 8+ seconds but survibe for 14+
And sometimes I don't even use the resolve tree, I just build for the enemy team comp such as rushing a
or
early game.
TL;DR tanks are fine when you play as an actual tank. Too many times I see these damage creep post but then I see full ap/hp Amumu or ad/hp Sett in your match history. A bunch of hp doesn't qualify you as tank. You should have 150+ resistances and 200+ to account for pen if your kit doesn't have innate sustain.