I love the sound of the old Trace Elliot amps, best tone I ever got, like it better than what I got ourt of the Ampeg B-15S I once owned even, guess the comparison isn't entirely fair though as they are completely different animals.
I can't say I have experience with a lot of different Trace Elliot models though, but the two I actually played on sounded stunningly great.
I originally bought my GP7SM 130W 15" 130W combo, that is my current main amp, and that I absolutely love the amazing tone of, because I had borrowed a Trace Elliot Serries 6 GP12 4x10" , 200W, I think, combo, from the rehearsal space of a band I played in at that time, and I fell in love with the tone right on the spot.
My vote goes to my GP7SM 130W 15" 130W combo though.