I used to take full scaling armor and MR runes...
I wish we could lower damage, or give the tank tree back some real defensive options. The scaling runes would give me 46 armor and 43 MR without even touching bonuses from masteries in the old system. Sure laning was a bitch but atleast I could have a late game fantasy that wasn't blowing up the enemy team in one hit.
Please either lower damage, or give back tankiness to champs that should live longer. You can even follow up letting them live longer by a damage nerf. Tanks don't need to die quickly, and they don't need to kill quickly.