I really liked Levinson...seemed to do everthing right in my system (however at the time I was doing a side by side with Marantz MA500s in a biamp config. One would expect the much more expensive Levinson to outperform the Marantz). Never heard the BAT but have read a great deal of things in support of what others have said here. It seems BAT is best for electrostat speakers if what I have read is true, and I have no experience with McCormack aside from reading many positive things. It seems your price range would be sufficient to also look at Pass amps which seem to be very good amps.
