I vote for mixed races. In game lore it make a lot of sense, there are already cases of love interest of two different species. It will make more credible that Eorzea is a continent rich in cultures and species. and the possibilities of customitation could be endless ^^.

I find it funny that one of the examples in the poll is miqo´te with lalafell, maybe it is me, but this two species are usually paired together, aren´t they? And you know, when you think about the miqo´tes in the miners guild and the lalafells owners of the guild and the commentary of one of the miqo´tes about how the owner chose his lovers...