There is a cultural divide in this country. I'm not sure what the geographical, political, etc lines are, but it's there and I suspect a your typical rural working class Democrat has a lot more in common with his rural working class Republican brother than he does with an upper class urban Democrat when it comes to attitudes and world views.
Who is more American? Whose values are better? Who knows? I think both candidates are trying to pull the rural working class voters into the fold and it will be interesting to see how it plays out.
Personally, I don't see either candidate as being 'like me' . . . well, I suppose Palin is more 'like me' and those I know irl but . . . I guess the way in which I perceive her to reflect small town values is the insular, prejudice, judgmental way and paired with a running mate that is a jerk (witness the dumping of crippled wife) and richer than God (witness the top end of middle class being $5M), meh, not 'like me' so much.