Potentially you could have 2x Tier 3 and 1xTier1 twists or 1xTier 2 and 2xTier 2.
I figure "Action Boost: Haste" and "Improved Power Attack" plus "Momentum Swing".
+0.5[W] is likely to beat out +6 crit dmg on any weapon with W=2d6 or W=1d10 or in high fort situations. In calculations I've done in the past haste boost is generally a big boost to burst dps - 121% difference in swing speed.
Code:
Haste = 15%
Haste Boost IV = 25%
Total = 40%
86.63 * (1 + .9615 * .4) = 119.9479 swings/min
vs
Code:
Haste = 15%
86.63 * (1 + .9615 * .15) = 99.1242 swings/min
Momentum Swing with +5[W] and +3CTR and likely reset in 15-20sec is also going to be a bit contribution to dps. Especially if the +5[W] stacks with Adrenaline Overload for 400% and +5[W].
Momentum Swing (min level: 20 - Prereq: Cleave) (3 ranks - 1 AP): (Active Cooldown: 1 min) Tactical Melee Attack: Perform an attack with +5[W] damage and +[1/2/3] critical threat range. Cleave attacks have a [15/30/50]% chance to reset the cooldown of this ability (this cannot occur more than once every 3 seconds). You must have Power Attack active to perform this ability.