While I don't believe any poll in WV, having seen conservative candidates get more than twice as many votes as media polls there said they would, the fact is that West Virginia, as of this spring, had 665,234 registered Democrats, 347,760 registered Republicans, and 156,199 registered independents.
West Virginia is a heavily democrat state (think Byrd & Rockefeller) - but they love their guns more than they love the Obama ticket. They are more conservative democrats.