Honestly, I've been miked through SSL boards (9000J) in the 80s and loved the EQ's versatility. And of the three, that's all the experience I have. I only mentioned the 551s because of your neve pres... So it would really be hard to say. Neve is hard to beat, but so is SSL. I had to Google the Elysia to even know it was EQ, just to be honest. Most of my experience was on the other side of the microphone (which is hard to believe hearing my voice now) lol.