My vote is likely not going to matter anyway, but I prefer TPE by a slight margin, mainly because of the verses and because I've seen them play it live twice and it absolutely slays live. While Idioglossia is more 'flashy', for lack of a better word, the title track is more coherent in my eyes. I like both tracks a lot though, see my ranking above (though neither is in my top 2).
King of Loss is, by far, the best song though.