Well, before picking one I'll attempt to convince
you to buy them together! I use the Boogie and Borg 2 in combination all the
time. I love the sound of the Borg 2 highpass and will often use this in series
with the Boogie lowpass, which is especially lovely using the 6db+24db
outputs. I personally think Boogie as VCF -> Borg 2 as VCA /
Low pass gate is the "essential" Wiard subtractive patch.
That said, if I had to pick one I would pick the
Borg 2, because I find it more flexible in application and more representative
of the Wiard's unique character. The fully sweepable mode response allows
you to find some sweet timbres that lie between the extremes of lowpass and
highpass, and using the aux out you can definitely capture that "MS-20" grit.
Whereas most filters to my ears are not particularly pleasant at the edge of
self-oscillation, the Borg 2 sounds very musical even there. In my use, the
transition is smoother than on the original 300-series Borg, whose resonance can
wail in a hurry! Finally, the Borg 2 is very effective as
a VCA.
Best wishes with your decision - either way
I'm confident you will not be disappointed!
Chris Sawyer