Is there a list of unbleeding enemies? I don't want to assume that all of them are obvious in a Bethesda title.

What I came to ask: Is there a clear point of diminishing returns for damage?
I don't see many enemies with over 450 damage, and most are in the 200's or less, so... yes and no? Your 180 damage weapon is probably fine if you don't mind swinging 2 or 3 times per enemy. Dual Wielding 200 damage axes should be sufficient, even without the One Handed enchants. But, if you want the overkill, you'll want the One handed enchants as well.
Wow. I did not expect to wake up to this. We went from Maces are best, to Swords are best, and now to Axes are best against anything but Undead? Great work, regardless.
What % of enemies in game would you say are Undead? From Cheshyr's chart, even against Undead, Swords look to be only 6-7% better than Axes against Undead, whereas Axes look to be 10-12% better than Swords against everything else.
Axes for me.
Yes, Axes make the most sense. I may have prefered maces, but I will never bias my results. The numbers say Axes 90+% of the time. It just goes to show that preferences and initial impressions don't have any bearing on an outcome. Math or go home. :-p
Another question would be if we are always power attacking does the bleed stack with dual savagery for dual wielders?
I doubt the extra damage applies to the bleed, but it's certainly something we can check.
Ok, just wanted to stop by and say thanks, these threads have been extremely helpful. I did have a question about unarmed min-maxing though.
The Fists of Steel perk adds your gauntlet armor rating to your unarmed damage.
Therefore to maximize this we would need to max out our armor rating.
So,
1.) have all the perks from the heavy armor tree that inc. rating, i.e. 5/5 (100%), all heavy armor (25%) and matched set (25%) = +150%? (not sure how the math works out on these bonuses)
2.) make daedric armor, improve it with our smithing gear and potions on
3.) Enchant the gear to have 4x Heavy Armor enchants and 2x Fortify Unarmed
My character is unable to do this currently, but it seems like it would be a LOT of damage.
Could anyone test this or just run the numbers if you have a better understanding of them than I do?
Also, how would it compare in damage to one-handers?
Thanks again!
Glad to be of service.

Fists of Steel uses the Base Armor Rating only... it doesn't matter how high you crank the displayed armor rating. Essentially, once you have Daedric Gauntlets of any quality, and add the Fists of Steel perk, you have maxed out your Unarmed Damage. You can also get the Fortify Unarmed enchant, and drop that on a Ring and the Gaunlets for an additional boost... after the crafting synergy, it's +14 each. Very decent.
In the end, you cap at +61 damage if you're a Khajitt, +46 otherwise. I would frequently go toe-to-toe with Dragons with no issue. Enjoy the brawling!