If I had to chose between the 3 you are considering, sonically, I'd take the EAD ever time!..for movies or music!
Others to consider, from my vast experience around all this stuff, would be Classe, Proceed, Krell, Aragon, etc! The unit's you just mentioned, especially for music, are not that special sonically really! Infact, for music, I would do the likes of a Classe SSP25/30 or higher, or a Proceed, PAV, Krell, or Aragon every time over any of what you mentioned sonically! Iv'e expience with all fo what you mentioned, and find these others supperior...agian, especially if you value music reproduction. Stil, digitally, these others are still better also. I doubt you'll get any better sonics for a pre/pro than something like the Proceed , Aragon's, or Classe's. Yes, the Krell is world class, but is expensive for the latest one with "dirrect analog inputs"!
Anyway, good luck