I, on the other hand, am focusing on Earth and Water. It's a ranger-specific thing – there's nowhere to fit 3 magic skills, and Earth and Water are prevalent in the Elven guild. And a ranger can't learn Fire at all, what a letdown(((. It's frustrating.
Yes, it's frustrating, but a ranger can still survive without Fire ;).
As for "nowhere to fit 3 magic skills" – where do you put the stacks of secondary skills? Personally, I can fit them all (I mean the secondary skills, and what did you think :D) :)