How many years will the coaches poll go on before the majority of people realize its complete stupidity? Being able to coach football and being able to logically and objectively analyze large data sets are two mutually exclusive skill sets. On top of that, does anyone really think these coaches, who are putting in 60-80 hour work weeks and are their busiest on fall Saturdays have time not only to watch games but to sit down for two hours and analyze all the data on Saturday night? Of course not. Which is why many of the coaches don't even do it, they just have their SID do it for them. Or they just take last week's poll, make a few adjustments based on the wins, losses, and 10 minutes of SportsCenter highlights they caught while getting in their only family chat time for the day, then throw in a few biases based on conferences, coaches they like or teams they've played recently, and then send it out.
None of this is to say the AP or Harris polls are great. I think all the popular polls are pretty terrible. Any poll submitted by someone who isn't watching 10+ games every Saturday then sitting down for 2+ hours to analyze all the results and how it affects schedule strength retroactively, and making a very focused effort to remove as much bias as possible, isn't worth its kilobytes. At least some of the media members have the possibility of meeting these criteria.