[Hankthetank]

Yeah, for the most part Haste is better due to the extra benefits of haste and the fact it doesn’t lower TP gain like Dual Wield does.

However Koga does offer a slightly faster swing rate so from a raw DD stand point, it is technically better, if you ignore the 15 Dex and the Acc Byakko provides.

It is also fairly important to note that it works out to nearly the same in situations where you can get about equal amounts of Dual Wield or Haste. When you can get significantly more of one it generally pays to keep stacking that.

Lets look at a soloing situation where you don’t get haste from a mage. Lets also say you have only the Turban and are deciding between Byakko and Koga:

Dual Wield IV + Suppa + AF Body = 35% Delay Reduction
Senju/Fudo Delay = 454 * .65 = 295.10
Senju/Unji Delay = 428 * .65 = 278.20
Unji/Unsho Delay = 402 * .65 = 261.30

10% in Haste Gear (Turban + Byakko)
Senju/Fudo Delay = 454 * .65 = 295.10 * .90 = 265.59
Senju/Unji Delay = 428 * .65 = 278.20 * .90 = 250.38
Unji/Unsho Delay = 402 * .65 = 261.30 * .90 = 235.17

Now lets say we swap out Byakko’s for Koga for a Max Dual Wield Build.

Dual Wield IV + Suppa + AF Body + Koga = 40% Delay Reduction
Senju/Fudo Delay = 454 * .60 = 272.40
Senju/Unji Delay = 428 * .60 = 255.00
Unji/Unsho Delay = 402 * .60 = 241.20

5% in Haste Gear (Just Turban)
Senju/Fudo Delay = 454 * .60 = 272.40 * .95 = 258.78
Senju/Unji Delay = 428 * .60 = 255.00 * .95 = 242.25
Unji/Unsho Delay = 402 * .60 = 241.20 * .95 = 229.14

The difference is far more pronounced here, because of the lack of haste options. If you remove the turban and compare just the Byakko Vs Koga you get the following:

Dual Wield IV + Suppa + AF Body = 35% Delay Reduction
Senju/Fudo Delay = 454 * .65 = 295.10
Senju/Unji Delay = 428 * .65 = 278.20
Unji/Unsho Delay = 402 * .65 = 261.30

5% in Haste Gear (Byakko)
Senju/Fudo Delay = 454 * .65 = 295.10 * .95 = 280.34
Senju/Unji Delay = 428 * .65 = 278.20 * .95 = 264.29
Unji/Unsho Delay = 402 * .65 = 261.30 * .95 = 248.23

Now lets say we swap out Byakko’s for Koga for a Max Dual Wield Build.

Dual Wield IV + Suppa + AF Body + Koga = 40% Delay Reduction
Senju/Fudo Delay = 454 * .60 = 272.40
Senju/Unji Delay = 428 * .60 = 255.00
Unji/Unsho Delay = 402 * .60 = 241.20

0% in Haste Gear
Senju/Fudo Delay = 454 * .60 = 272.40 * 1 = 272.40
Senju/Unji Delay = 428 * .60 = 255.00 * 1 = 255.00
Unji/Unsho Delay = 402 * .60 = 241.20 * 1 = 241.20

As a general rule Haste is better than Dual Wield enhancement due to ancillary benefits. But from a pure how fast can I swing standpoint, Dual Wield is generally better especially if you have access to very little haste gear.

Its also important to note if you are not 75 yet, Koga is a 72 piece of gear and Byakko is 75. So for people leveling Koga might be the better choice since they can use Koga while they level and eventually get Byakko at 75. But if you are 75, I assume you have access to a number of haste pieces and in this case Byakko will serve you much better.

Sincerely,
Hankthetank