I am curious as to what the best endgame tanking enchant is availiable, particually a maintank, most tanks I see use crusader, but is this really the best tanking enchant? Is there a better situational enchant for certain bosses?

I hear rumours that Unholy reduces the mobs damage by 15%, and not by 15. Is this true? (Sounds way to imbalanced).

Any input welcome.

Short answer: ^ that one

Longer answer: Tanking is about mitigation and aggro. 0.75% dodge, 0.75% crit and a little bit of AC beats all other options.

Not 20 spirit

Quite a large number of tanks (especially thunderfury/maladath tanks) that have crusader are doubling as fury warriors when they aren't tanking. +15 agil is the best, although crusader caught up for a second when shield slam was going to be based on AP. o_o

Shield block now, which I guess crusader helps but to a miniscule degree.

Wasn't it re-redesigned to be damage based on shield block or somesuch?

+2% block to shield is a sorta rare enchant... worth going for ?

+2% block and +7 sta are the two shield enchants worth looking into. What it would come down to is which is the best for your gear, if you already have a ton of health is the extra 70 worth it? On the other hand if you have a shield such as the Jagged Obsidian Shield which already has +block but no stamina the extra stamina may be where youd rather put your enchant.

As far as the difference between +15 agi and crusader, I would agree that it would be the most effective end endgame enchant, for lower level tanks however without gear to prevent spikes crusader procs enough to make it a reliable addition of str, especially with a high swing speed weapon, that I would value it over +15 agi.

If you mean for Shield Slam, it's block value, not block%. So like, shield slam will be pretty damn good with dreadnought, but it did LOOK like it was nerfed from its current form with wrath/styleen/etc. Well the ratio rage:threat is probably still the same, or maybe better, but it does less threat per hit, which is annoying for snap aggro. Then again I only ran a few tests, and that was after I respeced out of shield slam on live so it was based of what I remembered from SS dmg. Could probably do some math to check, but I'm lazy like that.

Basing it off of shield block seems better than off of AP. A 31 point defensive tree talent should not encourage the warrior to chase str and ap items over items that are more tank friendly.