If I'm not mistaken, the AoE section is incorrect in saying Thrash has the highest priority at a minimum of 4 long duration adds. I believe the correct minimum would be at least 5 targets.
What I have to back it up is Thrash on my Druid is 2553 damage total. This is 56.73 damage per energy spent.
Rake on my druid is 8248 damage total. 235.66 damage per energy spent.
For Thrash to have priority over Rake you would need at least 5 targets as Thrash's damage per energy spent at 4 targets becomes 226.92. At 5 targets it becomes 283.65 making it higher priority than Rake outside of C