Dwarven Battle Stance cuts non armor ignoring dmg in half, need maxed Dwarven stability or kd to charge and provides interrupts which are the weaker than kd's.There's a fundamental knowledge of warrior skills that seems lacking in this forum. Lets take Soldiers defense - 75% blocking and 33% IAS - or dwarven Battle stance. Both offer the IAS we love so dearly with added defense. (DBS being the superior of the two If wielding a hammer)
75% block cuts all physical dmg down to 25% while also preventing physical interrupts, disenchants knockdowns and conditions applied by physical attacks. This is by far superior to +40 armor, especially in HM where a lot of the damage dealt by physical attackers is armor ignoring bonus damage from supercharged attack skills.
Soldiers Defence provides the same benefits as lightning reflexes but needs the same amount of skills (2, the stance and the shout) while spending your elite on it. In comparison it is way inferior to permanent Lightning reflexes charged with On your Knees.
Edit: Just checked and yes with stonefist and 33% ias you can get 4 hits of renewing smash in whereas you can only get 3 with raner and 2 sec kd's.And then there's the part where you initially charge adren faster than any other class, ECharge+FGJ and your earth shaker is ready, after which you attack every 0.66 seconds for 3 seconds dealing ~100 dmg per hit and charging the next earth shaker before enemies get up.
All in all the actual bonus from warrior is stonefist, slightly more damage and armor, and vanity.