So DragonArmor is the best? Would've thought Daedric Was. Ugh...but i like Daedric =/
I can make everything in the smithing tree and Daedric is the best stat wise, but dragonplate/dragonscale armour is very close behind. ( You can't make dragon weapons either, just armour ). But at the point in the game I am in, both ebony and daedra hearts are far rarer than dragon bones and scales, by the time I powered my smithing to 100 I had enough dragon bones and scales to make a full suit of Dragon plate then upgrade it to Legendary, then make two more Dragonplate body armours, upgrade them both to legendary and sell them for 1.4k each ( well a bit under that as I couldn't really find many people with higher gold ).
With my current armour set up I have 281 Armour rating ( would be higher but I am using some magic dwarven gloves because they give me a 30% bonus to bow damage ) and I also have 300 hp, I can pretty much stand infront of anything and smash the fuck out of it with my warhammer, I lasted a good while fighting against an army of city guards before they killed me, killed quite a few of them. If you went with a shield build you would be able to tank an even greater amont of damage, the fact the shield gives good armour rating too, but blocking also works alot better with a shield.
But you will still get trouble with tough and powerful magic casters, especially ones that move fast, but just carry potions or items that give resists so you can use them if you come up against something that does hurt you alot. Bows are also great to kill these guys with, I usually just use something as cover and shoot the fuck out of the annoying wankers, I haven't put anything into archery talent tree but it's still very useful at times, even more so that I use my legendary dwarven bow, making up a bit for the lack of bonuses from talents and skill lol.