SC was closer than all McCain states but MO, MT, GA and AZ.
And SC is growing in population, which should give it a newer voter base, slightly, than WV, of course
The problem with "closeness" is that it sort of depends on the moveability of voters. If Obama won by 3% instead of 7%, would he have lost South Carolina by that much more, or would the totals have moved much more substantively in places like Ohio and Pennsylvania?
Nailed it. That sums up most of the Southern states, like SC, and Alabama, and Mississippi. far too polarized of an electorate to experience a large swing.