The best team doesn't always win.
While that's true, the same still applies to the BCS. Regardless of the path a team takes toward the championship, the "best" team doesn't always win, playoff or no playoff.
I thought the BCS was the best solution. We shall see
In my honest opinion, any system that prevents a team from a chance at playing for the title, when said team is a member of the toughest conference in the country, and goes undefeated, and in the process of doing so, beats THREE top-10 teams (#5 LSU, #10 Tennessee, #8 UGA, and just for good measure, again beat #15 UT in the SEC title game), is absolutely, positively NOT the best solution. A 4-team playoff makes that scenario highly unlikely, and an 8-team playoff makes it so unlikely that it makes winning the powerball look like a sure-thing.
There's a reason why every professional sport, and now basically every college sport, utilizes a playoff system to crown their respective champion: It makes sense. It's the one, true way to let the coaches/players decide matters on the field, rather than in the biased opinions of the voters.
Now of course, there will always be that 5th team who complains and says they got screwed. However unlikely, it's still plausible for the "best" team to be left out of the 4-team playoff. That being said, if you couldn't convince people you were at least the 4th best team in the country, then it's your own fault.
Even so, it's not like a team who doesn't make the 4-team playoff would've been in the BCS title game, so they really have nothing to complain about, other than it being 4 teams instead of 8 (or even 6, with two first round byes).
Personally, I would like to see it expanded to 8 teams. That way, nobody can legitimately claim to have been screwed after not making it into the playoffs. I think the vast majority of people can agree that if you can't do enough to convince people that you're, at worst, the 8th best team in the country, then you're certainly not the best team in the country, and therefore don't deserve a spot in the 8-team playoff.
Just my thirty-seven dollars and change. Now I must be off to go parallel park my train; I'll be back later.