Ranged of Melee XP?

[Mr.Peso]

You should put them into melee xp since you reach your hero faster that way.
You have enough ranegd xp for archer hero and the added melee xp also improve your strenght which makes you more tanky and adds a little melee damage.
(You should always put in enough melee and ranged xp to have 30 strenght and 30 agility.)