Let's assume Ohio State goes 12-0 and faces a 11-1 Nebraska (or Michigan State for that matter) team in the B1G championship game. I think we could place Nebraska (Mich State) in the top 15 by that point just depending on how it all shakes loose. If the Buckeyes win big over a top 15 Nebraska team they've done their part and should at least find themselves entrenched in the top three (I would think). So let's look at the rest of the teams in the discussion. I will only be looking at the undefeateds for this post.
1. Alabama... Remaning key games: TN, LSU, Auburn. It's tough to call a loss against Bama whether you think they've been, good, great, mediocre or otherwise. If I had to pick one of those games at this point I'd say Auburn, but Auburn still is suspect at best. TN is an upstart, and LSU has shown flaws, and let's face it, Saban's team doesn't beat themselves. I predict them going 12-0 and matching up with and beating Missouri in the SEC title game thus securing another BCS title game.
2. Florida State... Remaining key games: Miami (FL), Florida. Of the top teams in the country we all know historically Florida State is the team that usually has a pretty soft schedule (which again they do this year with the exception of Clemson, and the surprise Miami team that is undefeated), but they always seem to drop one game that you can't make sense of. I don't see it changing, I would predict a loss by this team, and I don't think it will be to Miami. I could see a sophisticated Florida defense confounding Jameis Winston at the end of the year and making it difficult for him. Again, they have a schedule that sets up nicely for them to finish 12-0 but I will call a loss for them at some point down the road, probably against Florida. Should they squeak by those games, I think Va. Tech will get a big upset win against them in the ACC title game.
3. Oregon... Remaining key games: UCLA, Stanford, Utah, Oregon State. Talk about saving the best for last. Oregon spent the first half of the season not playing anyone, and they'll close with a few monsters, and giant killers on their schedule. Oregon will not win out. They will beat UCLA, but they will not get past the Cardinal. Stanford helped the Buckeyes by losing to Utah, then beating UCLA, and then they will take Oregon out of the equation with a big time win on 11/7. Ultimately the loss will knot things up in the PAC-12. Stanford will most likely play UCLA for the PAC championship, but I imagine based off their body of work Oregon would find an at large bid to a BCS game if that's possible depending on tie ins and etc...
5. Missouri... Remaining key games: South Carolina, Texas A&M, TN. This team confuses me. They seem to have come out of nowhere, even though they do pretty well in recruiting every year. There is no way I could call them to run the table especially with a matchup with Jonathan foolsball coming up. I'd say a 1 loss Missouri finds it's way into the SEC title game and gets pounded by Alabama.
7. Miami... Remaining key games: Florida State, Virginia Tech. They've been winning, it's been ugly, but they've won. I feel like of the "undefeateds" this is the least stable choice to run the table. I like them to probably drop two games, both to Florida State and Virginia Tech. I think they have a lot of talent, but it's young talent, and they're a year away. Look out for the Canes next year.
8. Baylor... Remaining key games: Oklahoma, Texas Tech, Oklahoma State, Texas. It started easy enough. Baylor put up basketball scores against cupcake competition for a large part of the season, now we get to see how good they are. You can automatically eliminate either Baylor or Texas Tech from the list of undefeateds if they make it without a loss when they play on 11/16. If Baylor can win out, and win an out right Big 12 championship things could get interesting, but I think tougher defenses are on the horizon. I think they drop 1 of the next 3, most likely to Oklahoma because they can play some defense. Overall I don't see them winning all the other games too, I think Texas could surprise them (yes that Texas), and I'd say 9-2 is a good record for them at the end of the year.
10. Texas Tech... Remaining key games: Oklahoma, Oklahoma State, Baylor, Texas. There is always one right? They came out of nowhere and have amassed a pretty impressive undefeated record considering they were on no one's radar to start the year. Again against Baylor it's an elimination match if they're both still undefeated but I can't imagine they're going to get that far. I think Oklahoma is going to wreck any hopes Tech and Baylor had of becoming a force in the BCS scene. Also... Texas is still there and say what you will about the season they're having, but you can't deny the players Texas has on the field, and talent can make it happen at any time.
Given the state of this list (and excluding Fresno State and NIU for obvious reasons), I do see it as a major possibility that should Ohio State win out they will face Alabama for a national championship. It's just not possible for a 1 loss team to play in the title game and jump Ohio State if they're undefeated. If Ohio State takes care of it's business, I feel these scenarios are more than likely going to happen, and the Buckeyes should be in solid shape.
Again this is all for not and the cramping in my hands from typing all this is for nothing if Oregon, Florida State, Missouri, Miami, Or even Baylor (not so much Texas Tech in my opinion) also go undefeated because I feel the national landscape's opinion is that those teams have a higher SOS than the Buckeyes.
Happy reading! and GO BUCKS!