Per usual, the resident expert has all the answers. No point in directing a question to anyone else, TRH will give you the facts. Just ask him.
Does your opinion differ?
No one knows you dumb ass. I deal with grizzlies yearly, but have no opinion, unlike you. No one can know for certain except under multiple encounters (which isn't going to happen, ever). What I do know is that most large predators are pussies at heart and don't want to get hurt. My gut feeling is a draw, but there's no way to know and it's a ridiculous question as they'd never meet.