Stats
The stat priorities are as follows:
STR > 8% Hit > 26 Expertise > Crit > Hit, Mastery, Haste
Strength is the the best stat by a large margin, while Crit is currently the best secondary stat.
Encounters with short bursts of damage tend to favor Mastery more. However, on average, the tertiary stat priorities are as follows:
TG: Hit > Mastery > Haste
SMF: Hit > Haste > Mastery