Best Ashe Build?
As an Ashe main, I always pay special attention to her when she is played in the professional scene for League. The first thing I noticed is that many pros and high level players (diamond, master, challenger) have different core builds when playing Ashe. I've been researching all the different builds and these are the ones I found. Which one do you guys think is the best?
(Note: I will try to keep the build order the same, but sometimes it will be off. Also, assume that every build uses Berserkers Greaves)
Build 1 - Essence Reaver -> AS/Crit Item -> Infinity Edge
Build 2 - Essence Reaver -> Double AS/Crit Item -> Infinity Edge
Build 3 - Essence Reaver -> AS/Crit Item
Build 4 - Essence Reaver -> Double AS/Crit Item
Build 5 - Infinity Edge -> AS/Crit Item
Build 6 - Infinity Edge -> Double AS/Crit Item
Build 7 (Less so since BOTRK nerfs) - Blade of the Ruined King -> Double AS/Crit Item
Build 8 (Less so since BOTRK nerfs) - Blade of the Ruined King -> Double AS/Crit Item -> Infinity Edge
Build 9 (Very rare) - Blade of the Ruined King -> Black Cleaver -> AS/Crit Item
These builds only contain the core, as the rest of the items are varied.
Which one do you guys think is the best?

, LW item/