I know it seems cocky to tell you what you should write but as you have already written "To melee or to not melee". I suggest you focus on the archetypical roles first, similar to treantmonks ranger handbook.

Describing what pro and con this style has and then listing good Invoc's and Feats.

As you wrote yourself JaronK's Tiersystem is a bit flawed with his prefered classes as is ThinBlades compilation of evaluating Invocations.

Furthermore we should probably explain the "sample" builds that ThinBlade collected a bit more.

I'm just excited that you started already and hope I can help you here (although I'm AFB most of the time).

(Somehow left the part about reserving more posts in Copy-Paste-Nirvana...)