Soliciting Member Perspectives: Levinson vs Bryston vs Audio Research

I have loved the Bryston amps I have heard many times at The Show with Magnaplanars. In fact, was a complete Bryston system and breathtaking. My only local high-end dealer has Acoustic Research and those were fantastic with Aerial speakers. I love the 7Ts; maybe one day. Here at home, I lucked out with a Levinson #336 driving my ADS L1230s. I've had several amps before; Mac 2105, Bedini 250/250, Krell KAV-300il (horrid), Sumo Andromeda, & Nine Class A. I used to bi-amp with a pair of Nines but the Levinson just blows away everything I've ever heard. Completely invisible, effortless, and dimensonal. Even my tube loving goldern-eared friend said it was the only solid state amp that did not offend his ears. So I have never been able to compare these amps in the same system and environment but you picked some very good amps to choose from I think. I'd also check out Conrad Johnson and PS Audio amplifiers and the Merrill Class-D Veritas monoblocks impressed me as well. It's all about the synergy of system and room and your personal taste. I'd definitely get a tube preamp with whatever amp you choose would be my advice.