the once and future Spangles

[Concillian]

The main issue with heroic strike is the extra threat it creates. No issue soloing, but for instances you have to do something else. Some fury warriors switch to cleave in groups, which has lower inherent threat, but still some, it is also less rage efficient. Others carry a 2H weapon and once they get to ~90 rage, they switch to a big, slow heavy duty 2hander and chain Slams to get rid of the rage (this assuming they don't have aggro), then swap back to DW.

Were I to make a DW fury build, specifically for PvE damage this is what it would look like:
http://www.wowhead.com/talent/?pI0xdZVVzVgxoio

The Impale line is just low return for DW for 2 reasons: 1 you're not doing enough specials for Impale to be that great, you have a reasonably low damage weapon so deep wounds isn't that great, and you will crit often enough that sometimes deep wounds refreshes even before it can tick (which extends the time between ticks). Lots of discussions on the warrior forum (weeding through all the crap posts on the official forums) seem to lead me to the conclusion that deep wounds / impale + DW fury just aren't the best combo.

IMO, DW spec is the best option for extra damage with the points above the 'standard' 33 in fury (Piercing Howl, Flurry, Bloodthirst + 2 in berserker rage). With anger managment for the extra rage and overpower for the nearly guaranteed flurry proc when you overpower. Heroic strike will be used often enough that a 3 rage discount is worthwhile.

DW fury warriors are rage generating machines. Flurry adds more white damage than most other kinds of warriors generally have, and beserker rage turns you into a rage fountain when solo (10 rage + even more rage from taking damage). Getting a Bloodthirst often isn't an issue like getting a Shield Slam with a protection spec, the rage comes quick. HS is used as a rage dump when you have too much and can't BT often enough. More efficient than using WW on a single target and usable often because you generally have quick weapons (quick weapons also minimize the negative aspect of HS eating the rage of the next attack)