What's the deal with ilevels?
So... I'm confused. This is my natural state, so normally I'd just blink and hit my head on something, but I figured I might ask.
What's the difference between ilevels?
Take Deflection Band - Item - World of Warcraft and Keystone Great-Ring - Item - World of Warcraft.
Both are epics, at ilevel 200. Both should logically be roughly similar, right? A bit here, a bit there. More block, less stamina, etc. And yet when you compare them - Item Comparison Tool - World of Warcraft
Is the armor and dodge really worth that much that it equals out with the defense and hit?
Do ilevels really mean much? And is there a difference between a 200 epic and a 200 blue? Should they be similarly itemised?(I'm colourblind, so I often don't know what's epic and what's not. Bring on 3.1's colour blind options!)
I'm just trying to understand how it works, how to work out the relative value of something, if there is such a thing.