I own 8 channels of Millennia HV-3's and like them a lot. There is a subtle 'something' about the top end, but it usually doesn't bother me. They are from the 'straight wire with gain' school and they are really nice with orchestral film score-type recording--especially on strings. They have a lot of gain, in 3 stages, with pots that are stepped in 1.5 dB steps. For anyone interested, the sound of the [section] trumpets and trombones on Gordon Goodwin's Big Phat Band "The Phat Pack" (nominated for an engineering Grammy last year and engineered primarily by Tommy Vicari) is Royer 121's into the DC-coupled inputs of Millennia HV-3's.
I also own 6 channels of Gordon Audio, again from the 'straight wire with gain' school. I've been using the Gordons a lot lately, especially for vocals and orchestral room mics. They don't have the top end 'thing' and they're really great: no transformer in the signal path and really excellent design and implementation, as far as I can tell. And a ton of exceptionally quiet gain. The only negative, and I mean the ONLY one for me is the stepped gain in 5 dB steps. But this is certainly not unique to them (can you say Neve 1073?).