I have to agree with Diesel on this one. You have a tone of AS but very little AD in comparison. Switch some of your attack speed out for some substance so that when you hit them the enemy feels it. You want to think sneaky with WW you want to catch the enemy by surprise and hit them hard so either they don't get away or they really feel it if they do manage to get away. Though my biggest problem with WW is as DEWO stated.... making money so always take cost into consideration when you are looking at your build.

I dont know even where to start.
Runes? Masterues? Summoners? Skills? Items?
Everything is not right...

So much Attack Speed.

So little Attack Damage.

o_O

Ok standard ****, no Bloodrazor - ? Malady - ? If Malady why Stark - ?

AS is not needed on WW since you have your HC anyway. Bloodrazor + Wits + boots = cap.

Stacking Lifesteal would work for heavy carry (Yi, Trist, Ashe and so on) you are not the best choice for it and you wont have so much cash to get 55 thirsters XD

You are not the best farmer let's face it. If you want to stack thirsters go play sivir :)

I picked him solely because of his stacking lifesteal passive.
Ghost and exhaust are there because they were the first things that came to mind, use whatever you like

I have tried everything for Warwick. this is not going to work, especially the ghost and the sword of the divine. Believe me, its just not. The best thing for war to do is jungle and gank, u can try different things if they change war completely. Im not insulting your guide, many people tried everything and failed, im starting to feel that people think hes some sort of slow idiot that has no chase, but then again i think ppl forget to put any points on blood scent. Anyway im rrly getting tried of seeing these builds, if u can't jungle just play him as a dps, not as a attack speed champ.
Good luck, I didn't Vote btw.