Crit Chance rune mastery flexibility
would help breathe bit more life into offensive mastery, I posted this a while back, but instead of applying it to brute force i think it would work better on fury http://i.imgur.com/SoEJLpO.jpg
you can flip it such that instead of 5% AS you can get 2.75 crit chance. crit marks stand up to other runes. the quints however are lack luster. a slight buff to quints up to say 2.20% crit would help. 8.5 marks + 2.75 mastery + 4.6 = 15.6 crit chance. which is a good number to work with imo.
can reach 25% with triforce or 33.3%threshold with IE (ahem
)