If he was DPSing for exactly 5m,10s of the fight, then yes, 310k dmg over 310 seconds is 1000 dps. If the time he was DPSing was more like 6m,30s, that's 390s and 795 DPS. "Not bad."

ya, lol, i was dps'ing right up till the 5% enrage.

im retarded and went and looked at the video, it was a little under 7 minutes.

I am also very interested in this. For a DW Fury Warrior things are obviously not as simple as for Rogues (where slower is always better for the mainhand and faster is always better for the offhand). I have thought about this a little and compared the benefit of varying weapon speeds in different scenarios. I always assume that the weapons I am comparing have the same DPS and stats, only the weapon speed varies. Most of this is probably common knowledge.

Flurry uptime Slower is better
As long as you are only autoattacking Flurry uptime is only dependent on your critrate, since even with a 3.8 speed two-hander you will not need 12 seconds to use up the three charges. However there are also those special attacks, and with a slower weapon you have more special attacks per regular swing, which should result in a higher Flurry uptime.

Bloodthirst doesn't matter
Obvious.

Whirlwind Slower is better
An easy one here as well, a slower weapon will have the larger weapon range

Heroic Strike Faster is better
Not only will a faster weapon allow for quicker spamming of Heroic Strike, you will also loose less rage due to the missed auto-attack. The same argument holds if you use Cleave instead of Heroic Strike.

Overpower Faster is better
The rage cost for Overpower is negligible. It would be such a great ability if you wouldn't have to wait for the targt to dodge. A faster weapon will trigger more Overpowers and do less damage on each. However due to the weapon normalization the loss in damage won't be as significant as the gain in Overpower triggers, especially seeing as an (Improved) Overpower will most likely trigger Flurry.
Probably the best setup for Overpower would be a very fast offhand for lots of procs and a very slow mainhand for big Overpowers. However this is probably also the worst setup for Flurry uptime, as the fast offhand will eat up almost all the charges generated by extra attacks.

Hamstring Horde: Slower is better, Alliance: About even
The benefit of Hamstring depends on what weapon speed dependent effects the extra attack can trigger. For Horde this would be Windfury, which clearly favours slower weapons. For Alliance all I can think of is HoJ and Sword Specialization (which a DW Fury Warrior most likely does not have).

Execute Faster is slightly better
A faster weapon will cause a smoother rage generation, therefore allowing more Executes close to the optimal 10 rage.

Unbridled Wrath Faster is better
Obvious.

Dense Sharpening Stones Faster is better
I am assuming Dense Sharpening Stones are the default here, as they are very cheap and efficient, compared to those Elemental Sharpening Stones.

Have I missed something? If not it would seem to me that the benefits of slower and faster weapons approximately even out, so weapon speed actually matters very little for a DW Fury Warrior.

I disagree with Overpower being better with a fast. Switching to battle stance almost always means losing a fair amount of rage rage and if i'm going to do it it's because overpower is so DPR efficient and has such a good crit rate, which almost guarentees getting the bonus damage from Impale and proccing Flurry. So losing efficiency on overpower would not be a good thing.

Faster isn't always better for HS. One of the side benefits of HS is that it makes the attack not glance, and with a slower weapon you get more unglanced damage relative to extra threat from HS.

But its so easy to get a very low glancing blow damage reduction by simply equipping edgemasters.

For me edgemasters would give higher total dps than annilihation.

The important thing to remember is that as your gear gets better, a lot of the differences become less important

My thoughts...

Flurry uptime

Slower is slightly better. However, if you are at 30% crit rate buffed the difference is minimal. You will be over 90% uptime either way.

Whirlwind
Slower is slightly better do to normalization. If Iblis was 2.8 speed instead of 1.6 speed it would do 62.8 * (2.8-1.6) = 75 more damage per whirlwind. Whirlwind is every 10s so we are talking 7.5dps difference (bit higher in reality due to crits, probaly closer to 10).

Heroic Strike Faster is better
At high gear levels, and using edgemasters, heroic strike is a bit better for faster weapons in terms of damage per rage and much better in terms of DPS. See my spreadsheet here: http://www.rcsolid.com/poseidonguild/HeroicStrike.xls

Overpower
Fast offhand is better. MH ends up pretty equal, slower slightly better imo. Switching out of beserker stance is a pretty expensive maneuver, drops you below bloodthirst rage and can end up costing you dps. Faster weapons more consistant rage generation makes it a bit less risky to do the stance switch.
Also side note, flurry uptime with regards to 'fast offhand wasting flurry charges' is inaccurate and misleading. The difference is pretty minimal because the fast offhand can proc flurry for the MH too. Best case is equal speed weapons though since you can get an extra flurry swing free.


Hamstring Horde: Slower is better, Alliance: About even
Alliance warriors should not be spamming hamstring unless they have a procing weapon or there are agro issues preventing heroic strike usage.

Execute
Faster is much better (higher than 6.7 rage gen per second of course). The only way to spam execute is to have 1.95 speed weapons or faster, and that assumes flurry is always up. If you have slower weapons, it is impossible to spam execute at 1.5 speed since you don't hit fast enough. This makes a large difference since the first 10 rage is 60 damage per rage and extra rage is only 15 damage per rage. As always, i highly recommend using Fetish + Deathwish + recklessness (optional) together when spamming execute.

Rage Gen
Alliance faster is better, Horde slower is better(?). Windfury rears its ugly head again. I don't have windfury of course except on an alt so I will just say that the mechanic greatly favors slower weapons much like sword spec. As far as alliance goes, faster weapons give much more consistant rage generation and reduces the likelyhood that you will miss a bloodthirst/whirlwind. Most importantly, it increases your execute spam speed.


Agro
Slower is better. Using hamstring instead of heroic strike lowers your agro considerably. Also your heroic strikes are less frequent so the bonus agro isnt added as often.

Total dps
Alliance: Fast MH/ Fast OH (preferably same speed) - Salvation helps the agro considerations of heroic strike and you can't abuse windfury
Horde: Slow MH/ Fast OH (preferably MH twice the speed as offhand or 1.5 times the speed of offhand). Possibly switch to Fast/Fast during execute spam phase. If you ever tank, use the Fast weapon for heroic strike agro tanking.