Hoolio - well IMO, I would use Light Armor.
You get Dark Brotherhood Armor early + you can steal a full set of Glass Armor.
If you are playing on a PC, you can go Medium ... a mod turns Ebony into Medium Armor
Another mod gives you access to Daedric Armor.
Have not tried the heavier armor; yet.
As for the stock game, Glass Armor has a higher rating(AR) than Indoril.
Not sure what Royal Armor's AR is ... but you get that in Tribunal
To get Daedric, you have to kill an important/good person = unless someone knows where to find a full set
Not sure on enchantment value per armor.
I like a low weight/carry ratio = so I can move quickly
Plus, you can add Boots of Blinding Speed ... Cuirass of Savior's Hide.
Hope that helps.
Wait for the experts to chime in ... they know all the pro's and con's per armor type