Ole Miss may win the Coastal, but no way in hell Tennessee is better than Carolina. Now by year's end, your argument will probably be stronger than mine. But right now, I really don't think you can say anyone is better than Clemson. For one, if you're a P5 undefeated there is no way a 1 loss team should be considered to be ranked above you. Take even Iowa for example. Say they're ranked #3 or #4 right now, they'd still have to win the Big Ten Championship Game to prove it, so it would work itself out.
But to date anyways, Clemson's schedule has been tougher than Ohio State's (another unbeaten). Plus, Ohio State struggled with some even worse teams, such as G5 team Northern Illinois. I would not be surprised at all to be proven wrong in January, I probabaly will. But this bias can not exist in the rankings. If you're a P5 team that wins the games put in front of you, you're getting a chance to play for the championship. If Clemson beat every single team by one point, and Alabama steam rolled everyone except they lost to Ole Miss, Alabama would probably be the better team, but you know what, they didn't win every game and Clemson did.
I think you make some good points, but the ACC bashing by everyone in America is absurd. How about the Big Ten? Yes, they have some heavyweights, but 65% of the conference are teams that can't even compete at the FCS level. The Pac-12 is falling apart quickly. The Big 12 is interesting because of Baylor's QB's injury. The thing is though, we really do not need to discuss things like this because there will be only one problem at season's end... 4 spots with 5 power conference plus Notre Dame. The picture will be much clearer then, I think you will probably look smarter at that point than me, but even a 4 team playoff will have just as much dilemma as the BCS did.