CJ vs. BAT vs. THOR preamps, who's best?

Hi.
Looking for some input as to which of the above's top of the line, past & present preamps provide the best overall flexibility, and sonically involving presentation? ...and have the best support. Likely one of these will be paired with at least a solid state amp... possibly a tube as well if I bi-amp. Currently using VR4 JR's and if these change it will be to a little more efficient set of loudspeakers, but likely as close to full range as is possible.

I lean towards the euphonic - romantic side of things sonically speaking. And, 'gasp!' a bit towards the darker side of neutral... with needs being, very good to great bottom end and natural earthy sounding mids - no extension in the high end arena really necessary, just sweet and balanced on the whole.

I've got the VK5i, heard the TA1000 mkII, and know little about the CJ end of things other than that they invert the signal during it's development and only the BAT can afford one the use of a balanced setup... gotta go single ended with the others.

...again, support & flexibility with different amps are almost as if not as important as the sonic signature, to me.

Thanks in advance...