Biggest tip I can give you is max your primary and its synergies your gonna be spamming this 80% of the time. As for most of the skills there are a lot of skills that are just 1 point wonders for instance her fly skill. But no spec is better then the other they all have there different play styles best tip I can give you is put at least 1 point in each skill as they become available if it sounds interesting and try it out and if you like it then max it as well as any synergies it may have. Try to max the primaries and then choose 1-2 other skills to really dump your points into other skills just ignore them or keep them as one point wonders.