I voted for SL.
However, my real opinion is simply that it doesn't matter. What's the difference? Any good DM worth her/his salt is going to turn a published setting into some kind of homebrew anyway. Whether they just use the maps, the maps and locations, or the whole shebang, it seems like no single published setting, used twice, is the same. In other words, it depends on the DM.
YMMV.