Trenner & Friedle ART/Ella or Devore 9 or O/93?

I've read much about both; I've heard TF ARTS and the Devores; I like both quite a bit. I'll have to wait until they show up used here on Agon (which isn't that often, I realize - and yes, I know at the time of this posting there's a pair of Ellas up for sale), but what opinions or feedback/impressions could you give for each?

I'm using an LSA Statement integrated with Reference 3A de Capo BE monitors as my current set-up. Small listening room. Mostly folk, jazz, and singer-songwriter, with occasional forays into good, melodic rock.