I searched a bit but couldn't find any specific discussions on what to do with shields. I'm looking for some info on what to do with a shield at what levels.
Right now I have a prot. warrior at 43 and I put thorium shield spikes on my shield. Is this a noob thing to do? Should I be using something else like block rating enchant, armor enchant, stamina enchant, resistances, etc.?
Also on the note of shield spikes-- Does the block damage from the spikes add to threat levels like regular attacking damages or does it have any kind of reduced or increased threat? Seems like it would be nice if you're tanking a large group of mobs and the spike damage from them hitting you keeps adding threat between your normal abilities and CD's.
So for leveling as a tank what your suggest for shield enhancements? Then at 80 what would you use for heroic 5-mans and/or raiding?