Another vote for "White Zombie" here, which is closer to the original horror of the concept-- that even when you're dead, there is still no escape from slavery and you have to go on working, working... I thought I saw a clip from "White Zombie" in "Sicko" last week.
Some of the twentysomething filmmakers of my acquaintance tell me they like zombie movies for the survivalist thrills, and I enjoyed "28 Days Later" on that basis, but otherwise, it's too repellant; it turns beauty into garbage. Some of them just plain like the fantasy of blowing people into shreds without restraint, 'cause they're just zombies, see? The most fervent zombie fan I know-- he says Italian zombie films are the best-- had three tours of combat in Iraq. I suspect there's something about the turning of human beings into garbage that echoes or channels the genocidal impulses of the 20th century. To me the horror is that everything you love can be turned into offal by someone else having a bad day, but evidentally a lot of people get the giggles from that, not just in necroporn zombie movies but the torture flicks like "Hostel". Or it might just be that zombie flicks are relatively cheap to make, like post-apocalyptic films.