For an Ohioan, OSU-Michigan is the one that matters, the bowl is just gravy. And it's hard to argue that last year's #1 vs. #2 OSU-Michigan game, not to mention the #1 vs. #2 OSU-Texas game the same year, wasn't a big game. I did mention, too, 3-2 in BCS bowl games (making him 3-0 until the last two admitted debacles), which, while they're not necessarily the national championship game, are obviously big games.
As for OSU-Miami, I have always found the argument that Miami should have won to be bizarre. Yes, that flag was thrown late, but that doesn't make the call wrong. If you watch the play over again, the penalty is clear, the ref is just slow.