What among the following emits the highest energy in universe 1) black hole collisions 2) quasars 3)hypernova?

Quasar radio waves: powerful. Really, really, galactic scale power. Hawking radiation: weak.

Really, really weak. A single drop of liquid air gives off more power than any black hole. (Oddly enough, it's the smaller BHs that give off more radiation).

=============================== (later edit) Radio waves might be considered to be less energetic, but that's only true per quanta. Quasars emit a enormous number of quanta - - - even though a lot is in the form of radio waves, the total is still a LOT of power. Quasar: 10^40 watts, or two TRILLION times more than our sun.

BH: 10^-28 watts. That's minus 28, as in much less than one watt.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.