OK, with the usual caveat that cabling issues are very system dependent, I can tell you that I've heard both of these in my system and clearly preferred the Aries. (Actually I really like the Shunyata Altair but that wasn't your question.) To my ears the Aries has more of all the qualities you list, but the thing that stood out most was that the tonal balance seemed truer. Pianos sound like pianos, strings like strings. Much better soundstage as well. The Au24s are a fine interconnect and there are a lot of people that love them, but they didn't work for me.
