The thing the BCS has that the polls do not is consistency. With the computer polls, everybody knows the rules: play a tough schedule and win. The polls present nothing but opinions; the BCS rankings are based on facts.
I say have the polls for entertainment value only.
Sorry Toot but you need a course in statistics here.
Facts yes, however the facts are constructed in a manner that weights some facts greater than other facts. Each computer design picks out given variables that are given more credit. If they were all truly "FACTS" then each computer ranking would be identical...and they are NOT. Computers have as much bias in them as their human pollster counterparts.
In fact the whole BCS calculation process has significant bias in it because it ranks Strength of Schedule along with the human polls, and the computers. Since the computers all have some form of SOS already built in, ranking SOS independently gives it basically a double count.
SOS should be removed the BCS equation because it is already a factor in both the algorithms of the computer rankings, and the minds of the human pollsters. It shouldn't count more than once.
I'm not against the quality win factor though. This is a form of double counting that ensures those that play the top teams get credit for beating the top teams, even if it more than once.