Bwang: Basically, Favored Enemy: Humanoid would be FAR too powerful an option.
Ummm....Never proposed FE: Humanoids, rather I was asking how frequency affects the FE. Currently, I have differing effects on differing subjects. Most of the background reasoning is very campaign specific. One is a race that is all but unknown to the rest of the world.
I allow Rangers to swap their FE when they gain a new one. I, too, have been shafted by a GM or three rendering such class features moot with no recourse. I may have to many rebuild options built into my House Rules.
I like UVL's line of: 'the amount of research you've done, because of that hatred, on how to kill said creature' as a way for a player to gain a FE rating against a race that is unknown.
Thx to both of you for a thread-necro that will be helpful.