There is no such thing as the "very best team". Unless every time you do a playoff you would get the same results, all you are finding is the team that won its playoff games. That doesn't make them the best team, anymore than a team who knocks off the #1 ranked team deserves to automatically take over that #1 ranking.
Adding teams to the playoff will only make things worse for determining the most deserving champion. The first time the 8 or 16 seed knocked off the 1 seed, people would realize that adding more and more teams makes it less likely, not more likely, to end up with the most deserving team as NC. Just look at March Madness, and how often a 1 seed gets knocked out before reaching the sweet 16. The same thing could happen in football if you let in enough teams, as all the upsets in the past couple weeks (and happen every season) demonstrate in football any team can lose on any given day. That doesn't mean they're a worse team than the team that beat them, only that they got beat on that day.
Everyone hated the system where the voters voted for the "mythical national champion", but that's really probably as fair as anything else, and arguing over which team deserves to be ranked #1 was one of the best things about college football, that's been lost since the BCS NC game was created. As is shown by all the Pac 12 fans whining here about getting shut out of the NC game recently, playing the NC game didn't stop that. A four way playoff won't either, fans of the 5 seed will whine, and eventually we'll get an 8 way playoff, then fans of the 9 seed will whine.
Its the very best team any one year. And that changes every year. But people seem to say that the sec has all the best teams every year, which is false. They aren't better top to bottom every year. Never have been never will be. No one conference can say that. And that's the point. You can only decide one year fort he next, but the bcs and coaches poll etc decides a lot based on preconceived notions that the sec is better every year. Hence its completely flawed, as you so nicely pointed out.
the whole point of march madness is to show you who can win so many games in a row under all the pressure. If you can't do that,you aren't the best for the year. Any number one seed that losses before the sweet 16 didn't deserve to make it there because they just where not good enoug for the entire time you have to be at your best. The winner every year played their best for a month strait. No one else did.
Truth is pro sports like basketball and hockey and baseball have a a better system with multi game series for each round, but that's not possible with football, except that it is kind of. You take the winners of a conference, which means they had to win more than any other team and win a game against the other best team in their conference. That's as close to a series as you can get to get to a final round. But that isn't how it happens today.
With the new playoff system, you Now have all top teams and at that point, if you can't win, it's not cause you had a bad day and the other team played above their heads, it's because you couldn't play at that level when you needed to even though you are supposed to be that good. Im Fine with as big a playoff system that allows only one champion team from each conference. If they went beyond that or allow two teams from any on conference then it would not fly. If you came I second in your conference, tuff luck, your not the best in that conference. If you where you would have won the games you had to to win the conference.
And you make any PAC 12 fans point with your argument. You don't think they belong there because you think the sec is better, but without having to truly prove it every year with a proper playoff system you really don't have a real way to say our teams are always better under pressure as well as during the regular season. Also, my whole issue all along is that the sec does get a pass for a single one game loss, but the pac12 does not. Big double standard, and its about to go away with a playoff system. I hope.
Look USC should have beat Texas that year, but they didn't, which means Texas won when it counted. Good for them. But at least it was a proper match up. Two sec teams was stupid. The had their chance, and winning a do over was meaningless. They lost when it counted the first time, they should not have gotten a second chance, the PAC12 an no other conference does. I didn't see a single sec game today that couldn't have been won by either Stanford or Oregon. Unit you won't see a Stanford Oregon title game. Zero chance of that. Even if Stanford had beaten Utah last week.