I'm gonna chime in here, because I'm struggling with the new shields too. Partially because my gear is really lacking... my guild is about shift into T4. Unfortunately, I think I logged w/ my pvp gear on again.
My current shield is the Ogrila shield
http://www.wowhead.com/?item=32652
I have gem'd it w/ +4 agility +6 stamina for the stat bonus, and given it +18 stamina.
If I am calculating this correctly, I am getting:
2.24 towards uncrush (which I am)
36 stamina ~415 hp
The
http://www.wowhead.com/?item=34675 looks like a clear upgrade:
2.28% towards uncrush
31 stamina (unenchanted)
The other 3 shield options (badges, sha'tar, dawnforged) all seem to trade stamina for avoidance/mitigation. Seeing I'm so close to uncrush right now (at about 102.7%) this worries me.
Here is what I think. I'm close to exalted with Sha'tar and gold isn't a problem anymore. I should pick up the Sha'tar shield and put +15 block rating enchant on it and gem it for stamina. Then once I get exalted with the Sunwell peeps I should pick up both shields and mix and match depending on my gear at that time.
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