I like both, but prefer Astronautalis for his Weakerthans/Weatherbox-sounding vocal parts on some songs. Pomegranate sounded more like a hip-hop Tragically Hip than a hip-hop Weakerthans though... I wonder which of his many voices will be most prominent on this album.
I've been listening to Astronautalis longer but I like P.O.S more. This album should be amazing.