I strongly dislike a black background, which then assumes basically white text, as that makes everything seem like a goth game of dress up, ok if your site is suited to goth dress up otherwise irritating, and since very few sites are so suited as a general rule I strongly dislike it as said.

That said I don't have a particular problem so much with darker background colors as long as contrast can be maintained, but I still somewhat dislike White text so it may be that it can be difficult to find a color combination that is dark background and light text that will appeal to me.

I think I prefer light background, not necessarily white, and near black test.