I'm currently level 41 with perks dumped into 2-Handed, Heavy Armor, Restoration, Conjuration, and of course Smithing+Enchanting. I've put 1 level into magicka, 10 into Stamina, and the remaining 30 into Health
In any combat situation, I just summon either a Storm Atronach or Dremora Lord, then whip out my Legendary Daedric Greatsword, use Elemental Fury (attack speed boost shout), and proceed to one-shot basically everything (Dragons go down in 2-4 power attacks); and in the rare occasion that my massive healthpool gets below 80%-ish, or I'm getting hit at range by something I can't immediately get to, OR after any combat; I just dual-cast the first Healing Spell to full health, and I rarely have a mana issue. Keep in mind I also have a full set of Daedric Armor, and the weightless Heavy Armor Perk, so full mobility with all that damage reduction (as a Nord with 50% resist frost, and the Lord Stone's defensive bonuses, magic damage is brushed off as easily as physical)
TL;DR, 2-Hand+Heavy Armor+Conjuration+Health is an overpowered build, considering the near free mana cost of low-tier healing spells, and the massive benefits of Enchanting+Smithing
Solution: I feel that Enchanting should be MAJORLY down-tuned because its just too good