Not going to deny that I'd probably prefer if this were an English version of Atsuki Chishio Ni (the remake of the first game) instead of ST5, but I figure NIS America feels the New York setting might attract more people, rightly or wrongly.
If it were me in charge, I'd go with Atsuki Chishio Ni since the anime and OAVs star those characters, so those are the ones anime fans would be familiar with in the first place. Plus, those are my favorite characters anyway!