I went with heavy armor for my dual wielder (my first character), but once I had a better idea of how the game played out I chose light for my two hander. Both combat types rely heavily on stamina, so its really the better way the go, even though it means passing up daedric weapons for glass (unless you want to spend a ton of perk points on smithing.) I found a good way to play as a two hander (which would have worked for dual wield too) was to keep my distance, use a tank follower, and sprint in for critical strikes rather than standing toe to toe. That makes stamina really important, and armor rating less so.
IMO the game is much better if you only take the steel and arcane smithing perks, you can then improve the armor you find. I use conjuration, so at high levels (so I'm not overpowered) I can make daedric armor at the atronach forge, you always seem to get peerless enchantments as well. I do like the look of the basic steel armor though, my last warrior on master, wore the basic steel armor until level 45 ha.
if what ur saying is true then it goes against my rpg knowledge: 2 handed = heavy armor. 2 handed with light armor just doesn't fit my lore.
Well not really to be honest, warriors use light or heavy armor. In real life going back a bit, you would find more warriors using light armor due to the impracticality of heavy armor that covers your entire body. The strain on your body carrying such heavy armor doesn't make you the best fighter, so its more practical to use light armor that protects your chest etc.