Naah, I'll go for the coaches as being the better judges.
1. They know football better than the writers, certainly with respect to interior line play
2. They see more football than the writers -- you know they scout opponents thoroughly, so they would certainly have a good handle on the teams in their own division and their cross-over games, but they probably also see the other teams in the opposite division while going over game footage.
3. Less of a personal interest? are the coaches allowed to vote for players on their own team? and of course some of the writers could be homers, and PSU probably has guys like Davey Jones who might pick against them.