And I'm terrified that Philip Seymour Hoffman will again take Heath's Oscar away from him.
Heath should have won in -06, no question about that. Nothing whatsoever even came close to Ennis. The reasons why Heath didn't win, - well, we know'em.

But by the same kind of reasoning, though, that says Heath should obviously have won for Ennis, when considering only the strength of the acting and the character portrayal and not all those extraneous factors that played a part in the actual -06 award: I have to admit that I think PSH should win for his performance in "Doubt". I personally think his role is better, more nuanced, more challenging, deeper and much more interesting than the Joker.
So... much as I'd really really like Heath to win, I think the fact of it is that
if Heath wins, it's because this time it "was his turn" just as the Academy figured PSH was next in line in -06. It's "now or never" and an opportunity for the Academy to feel good about themselves. After all, - they'll be thinking - PSH already has an Oscar and he's still around to win another one some years form now. Never mind that his was actually the better performance this year. (Of course, they might actually disagree with me and think the Joker simply is the best thing ever. After all, it was on the strength of that performance that TDK became the second highest grossing film ever in the US).
Either way, a win for Heath or no this time around, it will leave me with a sort of bitter after-taste. He should have won for Ennis. There's no making that right. That's the long and short of it.