"Red flame vs blue flame, both on fire but one is sharper, brighter, more focused and energetic. That makes sense, right?"
I would have said more efficient, rather than more energetic. But I get your point. (although, technically, it should be "Blue flame vs. Yellow flame", the former being hotter -- but I like the Red vs. Blue color scheme better ;o) )
"Cold anger is the one you want. Makes the lights go dim, all obstacles morph into rice paper. Also known as 'righteous anger'."
Marcus Aurelius wrote quite a bit about anger and the government of temper, the gist of which is that, while we all become angry, righteousness is more valuable. Anger gives us the fortitude and tenacity to act morally and righteously, but the emotion itself is of little use -- and perhaps counterproductive -- thereafter.
Personally, though, I think getting a little P.O.'d at the right people and for the right reasons is perfectly fine (as per Aristotle). But I do try to let go of the emotion before smackin' 'em upside the head. I find I have better aim that way ;o)