do you mean most awesome way to die to read or most awesome way to die i wanna experience? If personally, I'd rather a peaceful death, like death during sleep. Actually, just chloroform me without the horror (like not realizing and just slept), then die however without waking up is fine too (even if butchered or whatnot).
With a big bang, I mean really really big and spectacular explosion that would even put Michael Bay movie to shame. In fact, the explosion should be so big, the universe itself was ripped apart. That way, when reincarnated, it would be in a different world.