pvp with 5 Clever Alchemist and 4 Leki's Focus armor and 3 Agility jewelry with robust and increase Weapon damage on all three...for 15 seconds I get 5305 weapon damage and then for 30 seconds I have 4314 weapon damage, rinse and repeat essence of weapon damage potions. (also, be sure to have medicinal usage and snakeblood passives to optimize this, so a potion is always available when the effect of potion runs out)

If you use 5 Hundings and 4 Leki and 3 Agility you will have 4500 Weapon Damage all the time, but I've found Clever Alchemist to be more useful.