Voici le calcule exacte qui vient d'un forum anglais.
You're right lets run the math:
Lets say we have a 30 Strength character, with a +5 Falchion and Power Attack, he has improved critical. He has 4 APR and is under the effects of Haste. He also needs an 11+ to hit with his primary attack, and a 16+ to hit with his second attack, he'll need a 20 for his 3rd and 4th attack. His average damage per hit is: 15 (STR)+2.5x2 (Falchion)+5 (enhancement bonus) +15 (Power Attack)=40 damage per hit.
Since his crits are x2 and all the damage is multiplied, we can add them on as extra hits.
So with his primary and hasted attack he has 0.5 chance to hit and a 0.15 chance to crit (1.3 "hits")
With his second attack he has a 0.25 chance to hit and a 0.0625 chance to crit (0.3125 "hits")
With his 3rd and 4th attacks he has a 0.05 chance to hit (20 doesn't confirm a critical hit). (0.1 "hits")
He would expect to have 1.7125 "hits" per round.
His expected damage per round is 68.5
Let's say we have another 30 Dexterity character, with 2 +5 Kukris, Finesse Training, Piranha Strike, Double Slash and improved critical. He has all the dualwielding feats and is also under the effects of Haste. He needs a 13+ to hit with his highest AB attacks, and 18+ to hit with his -5 attacks and a 20 for the other 3. His average damage with his weapons is: 10 (DEX)+2.5 (Kukri) +5 (Enhancement bonus)+10 (Piranha Strike)=27.5. Note that Piranha Strike should be doing 5 points of damage in the off-hand, but it's currently doing full damage.
Again, we add the crits on as extra hits.
With his primary attack he has a 0.4 chance to hit and a 0.12 chance to crit (1.56 "hits")
With his -5 attacks he has a 0.15 chance to hit and a 0.0225 chance to crit (0.345 "hits")
With his other attacks he has a 0.05 chance to hit (0.15 "hits")
He would expect to have 2.055 "hits" per round.
His expected damage per round is 56.5125
The two-handed weapon user is dealing 21% more damage than the dual wielder.
Bon c'est un peu mesquin d'avoir appliqué rapidité qui avantage carrément le combat à 2 mains.
Sans rapidité l'avantage est encore très léger pour le combat à deux mains.
Ne pas croire que 7 attaques avec possible critiques suffisent à faire la différence.
Le calcule est bon 
Message édité le 15 mai 2019 à 16:04:58 par Loupgris92