Comparing my armor, avoidance, cooldowns and health pool with our Death Knight tank, I can't help but notice I'm worse at each of those, maybe except health where I am equal but scaling slower. I'm not sure how def stance will cover the 5k of armor difference between us, lets assume it will be more or less the same, but still my slightly higher single target threat isn't enough to make up for lower avoidance and much worse cooldowns - the thing that is supposed to keep us competitive is probably block. While in TBC block was awesome tool to keep those ugly crushing blows off the combat table + some bonus mitigation, in WotlK it is mitigation alone, and not a very reliable one either. Warrior tank will have from 15% (not full shield spec, and br on gear mostly avoided) to 35% (other way round). The block value will be around 1200 - 1300, with glyph of blocking and all standard talents. Well, do you think that in currently available content block has any value whatsoever as mitigation? In my opinion it feels pretty weak and RNG dependant, having more health, more armor or more avoidance is just straight out better. Paladins have it slightly more reliable with block value being added to their EH calculation, but lets be honest, 1500 blocked out of a big melee hit isn't anything great.
So, my question is, don't you feel warriors (and to lesser extent paladins) being balanced around block makes us somewhat disadvantaged compared to non blocking tanks on bossfights - OTing Patchwerk being probably the only example in current content of hard hitting melee boss. Do you look at block value as on mitigation, or just a threat stat alone, making those Shield Slams fatter? Do you consider block rating being the item budget well spent, or you pick up some real avoidance, or real mitigation over it at each possibility?
Also, are you happy with block change, from reliable but not very significant mitigation in TBC (crushing blows we can ignore), to unreliable but sometimes quite decent mitigation, with periods of even better mitigation on request, like it is now?