Given however many people choose to make polls here, perhaps 20, probably less, we see that the polls differ, usually they vary more as you get lower in the rankings. Part of that is that humans are less concerned about who is ranked 25th, or 20th, than the top 5 or so. Part of it is difference of opinion, some is difference in knowledge. We're more familiar with teams in our conference, teams we just watched, recent history, etc. Is any one of us right and others less right?
If one of us spent three hours on this, are they apt to be more right than I who spends 5 minutes? Perhaps, perhaps not. We'll never know. That's why preseason I'm more interested in who appears to be most over ranked and under ranked. I had Miami in the latter and Florida in the former, decent guesses on my part. But, really just guesses.