However, I don't know why so many warriors out there prefer light armour? Is there a particular reason?
Less perks required, move faster (you can actually dodge fireballs this way), less stamina used, and because there is an actual DR cap (which is 567 Armor Rating), you can reach it by the time you have Glass Armor (with high Smithing skill). And when you reach Dragon, Dragonbone weapons is superior to Daedric.
In the long run, Light is better than heavy in every way.
Anyway, back to topic. The most survivable warrior type on master, IMO is light dual wield archer. You can quickly bring down enemies at close range with two weapons (Orc's Beserk + Dual Wield = WIN). Archery is to weaken strong enemies or straight up finish weak ones from afar, and also for those pesky mages and archers.
But sword and board is fun to play and make you feel like a total BAMF... Kick in the doors and bash them in the face before lobbing their heads off... Also, Shield Charge is
[censored] AWESOME!