jbmando,
Its better to stick with AU, with all you MOTU VI's do you use DP? I realize DP6 has a rendering bug with its own external VI's though-or should I say the VI do not work with DP.
I tend to use BB to start up tunes for chord progression/and minor arrangement (as much as BB allows) and get the MIDI stuff close, then export / import into DP for further manipulation-i.e using VI's. But I can see that perhaps using a VI within BB can help with the melody, to get close to the sound you want to create a vibe for what your doing.
If BB had a open backing tracks capability w/ MIDI instead of being stuck with the styles, I think it would open up the capabilities for creating some good tunes outside of the norm. Or am I missing something? Having styles is good, but to much grid work in a loop hampers the work flow with style maker. Perhaps allowing both open MIDI in conjunction with sytles would be a great working method !!