A Hybrid as a noun means to combine two different elements together, as an adjective it means a character composed of mixed parts. Therefore there should be no confusion about what skills to be taking to be a hybrid priest, your playstyle will differ from a different person. I for one took Magnus to max lvl 3, everyone on this acolyte board says it is completely useless, and you know what? I kill my mobs and people in Colusseum and Raid just as well as any other FS or Hybrid or DPS battle priest, why? because its my playstyle, nobody is here to say what is right and what is wrong, all that people are saying is good and whats not are just their own opinions, therefore if you like to leave skills at different levels because it suits to the purposes of how you want to play your priest, so be it, it is your playstyle and nobody elses.
On a sidenote, Atweig does present very good ideas which I admire greatly.