Some good choices on your list. Unfortunately, only your ear will know what you like. Here are my general comments:
Aperion: Great all round speakers and very pretty to boot. Since they pay shipping both ways, no reason not to audition them in home. One note, they are a bit inefficient, but the 2310 should drive them.
Axiom: Great speakers that are a hair on the lean side which I actually like. Not as pretty as the Aperion, but still look good.
NHT: I don't recall hearing the particular speakers you've mentioned.
SVS: Great speakers, but they're a bit too laid back for my taste.
HSU: I didn't like the soundstage on these when I heard them. They're also big speakers for bookshelves.