I would say AR > Flurry for an Imba. Like Lanier said, AR can be easily maintained with "TNTF!". Flurry takes alot of energy and must be watched more closely. And the DPS from a spear should not be underestimated or undermined.
I prefer niether. I use a Soldier's Fury Imba and never have trouble maintaining "SY!". I also deal decent spike damage to single targets. The -20 armor isnt an issue. You still have "TNTF!", 86AR, and 110AR with "SYG!" most of the time. Math doesn't like your build. Your base gain rate is 1.33adr/(1.5sec*.67). At that pace it takes a little over 6 sec to charge SY!. That's too long. The boost from Spear of Fury will get you there in time for every other usage of SY!, assuming you always have a target with a condition when you need it and never miss or get blocked, but you'll still be dropping SY! every other time. And that's not counting the adr you lose to GftE.
I prefer niether. I use a Soldier's Fury Imba and never have trouble maintaining "SY!". I also deal decent spike damage to single targets. The -20 armor isnt an issue. You still have "TNTF!", 86AR, and 110AR with "SYG!" most of the time. Math doesn't like your build. Your base gain rate is 1.33adr/(1.5sec*.67). At that pace it takes a little over 6 sec to charge SY!. That's too long. The boost from Spear of Fury will get you there in time for every other usage of SY!, assuming you always have a target with a condition when you need it and never miss or get blocked, but you'll still be dropping SY! every other time. And that's not counting the adr you lose to GftE.


and -20 armor is not a real problem even in HM....
