I'll probably use them all but the Favored Foe. I happen to love the PHB Favored Enemy and Natural Explorer (with the option to retrain them if they are not used), so I'll probably add Deft Explorer in addition to Natural Explorer. I dont think that would make the Ranger OP, especially when you compare it to the Paladin.
A thing that disturbed me (it shouldnt, yet it does): there no mundane archetypes presented in the book. When I say mundane, I'm not talking about no-magic per se, but less overly flashy features, spraying magical beams by every pores of your character' skin. Sure this one book is presented as a book written by a witch, so its not surprise the options are more magically oriented, but I sure wish WotC would sometime give a nod toward those who prefers less ''magically exuberant'' content.
Anyway, great book, worthwhile buy.