I think that, like some people said, inspirations (especially purples) can be considered to be more powerful than either temps or incarnates.
But it is truly no skin off my nose. I choose to use (or more generally not use) various powers or tools for my own inscrutable reasons. I do try to challenge myself, but for the most part it's irrelevant to me if your inscrutable decisions are different from mine. Heck, (and this may be blasphemy), I'd much rather try a pick up MoWhatever TF with a bunch of randoms and fail than plan out meticulously what the optimal path is and succeed in thirty seconds because we took every advantage we could find.
I am a little concerned about the new difficulty levels. Not because they make things harder (which I'm all for!) but because our user base isn't as robust as it once was, and the "overdiversification" (my quotes) may make it more difficult to find teams to try things, particularly to try things you have never done before.
My two inf.