Which poll carries more weight for you?
I always prefer the coaches poll. Media doesn't usually experience the outlying teams. But, the coaches poll is also skewed for the first few weeks because most all coaches give their own team a first place vote.
I don't think most coaches give themselves a first place vote unless they think they deserve it. If anything, coaches skew the rankings by voting themselves down. You don't actually earn anything by getting the highest rankings except for a target on your back.