Fastest specs
A rough guide, not a verdict. Comparing one class or spec against another is the least certain thing this sim does. Every spec fights the same mob, but each plays with its own estimated gear, and some beta mechanics are still settling (warrior rage, warlock pets, hunter pet stats). A spec's rank depends on those guesses as much as on its kit.
Treat gaps of a few kills per hour as a tie. Bigger gaps are a real hint, but they can still shift as the beta changes. For decisions you'll act on, like which rotation or talents to use, open a spec: comparisons within one spec are much more reliable, because both sides share the same gear guesses. How to read the numbers
Pulling a pack: the mobs all come at once and you kill them one at a time; AoE spells (Frost Nova, Blast Wave, Consecration, Thunder Clap) hit all of them, Balance roots one, a pet tanks one. Kills per hour counts every mob and "Mean kill" is the whole pull. Kiting isn't modeled, so ranged classes do better in skilled hands than this shows. Watch the Deaths column.