Another key real-world difference is rage efficiency. With a tier1 talent and the idol of brutality (blue from strat), a druid can reach 80% of his maximum threat on a mere 7 rage every 2.5 seconds. A more heavy druid spec also gives 5 rage on every crit and the chance for a free special every attack/ability. It is largely accurate to say that druids operate on a infinate-rage basis on most bosses (and some trash).
If you assume a 20% crit rate:
Druids do 80% max threat at 2.4 rage a second.
Druids do 100% max threat at 6.8 rage per second.
For a warrior to sunder and heroic strike every cooldown with both imp sunder and imp HS talents:
2.9 speed weapon: 8.27 rage per second
2.0 speed weapon: 12 rage per second
1.3 speed weapon: 16.9 rage per second.
As a practical datapoint, my white DPS in bear gear is 105. 23% critrate.
Maul does (2.5*dmg + 128) * 1.2 * 1.1 damage with talents
[top] 515.46 damage normal
1030.92 crit
= 634 average maul
If I maul every cooldown and don't swipe, faire fire or demo roar at all, I should do:
1658.74 Threat per maul
656 TPS on a 0 armor target.
Adding swipe will put another 141 TPS
However, adding buffs will add more threat.
In fact, every 1 AP added through buffs adds .62 TPS. So true shot aura will add 62 TPS and jujupower adds 37 TPS.
If I switched from my warden staff to a warhammer, it would add about 192 TPS
Additionally, every crit % adds threat too. LoTP, which I didn't consider, adds (roughly) 3% TPS.
All for 6 to 17 rage every 2.5 seconds.