Who has Arkansas beat to deserve their ranking? You never answered that because there are only 2 teams with winning records that they have beat. You think Arkansas would have won the big 12? That's laughable. Usually the number 6 team in the country has actually done something. In fact, OSU has a better wins resume than any team in the SEC other than LSU. Yes they lost to ISU, bad loss, but who has Bama proven their worth against? Arkansas that's it. You can try to count Penn State but come on... When the best thing on your resume is a loss, that is a bit ridiculous.
You are an A&M fan, you know first hand how bad the preseason rankings are.
As for OU, if you would have read my post it said that now #19 is about right, but not for most of the season.
You talk about computers, but those "non-biased" computers take into consideration the rankings of the teams when they compute their data. Some of those computers take into consideration the rank of the team at the time that the game is played and some take the final rank of the team played at the end of the season. The input data has to come from somewhere.