When I'm comparing gear in-game I often get confused as to which is better. For example, I might be deciding between two different knee pads, Knee Pad 1 will have 22 Armour and Knee Pad 2 only 10 Armour. But Knee Pad 2 will add 16 Stamina points where as Knee Pad 1 won't add any. So I get confused as to which is better for me. Furthermore, where does health come into all of this? Can someone please xplain to me the difference between armour, health and stamina please?