Your speakers are not an easy load, so first of all you need an amp with driving ability. That means lots of current on tap.
Out of the amps you mention, the Pass or the BAT are probably the safest bet to drive your V3s.
Now as to which one of the two -- I can't help you, I like both for the same reasons (tonally pleasing, wide frequency response esp in the high frequencies, not clinically accurate -- but detailed enough to push the music and the dynamics through...)
It's a very personal thing
Out of the amps you mention, the Pass or the BAT are probably the safest bet to drive your V3s.
Now as to which one of the two -- I can't help you, I like both for the same reasons (tonally pleasing, wide frequency response esp in the high frequencies, not clinically accurate -- but detailed enough to push the music and the dynamics through...)
It's a very personal thing