I don't even give a crap about high armor values though they are helpful. I go glass cannon and stack immunities and on my melee characters too and they have over 20k health. Diner = 30% Dinner heal = 3 AP nearly full instant self heal, a dinner heals my fighters for 6400 health.
If you can't win just by using the environment alone, win by bloating health and CON!
FIGHT stat bloat with stat bloat!
FIGHT FIRE WITH FIRE!