Lots of great suggestions above...my experience:
I switched from using a Sans Amp BDDI as the core of my tone, and went all digital a few years ago. My "A" rig is based around the Fractal Audio AxeFX, but in order to crop my rig down to the minimum (in order to do duo and some other very small shows with tight stages) I tried the ZOOM MS60B and eventually landed on the ZOOM B-3 as my "grab and go" modeling pedal.
Consequently, both of my Sans Amp BDDI pedals were sold off. I play hard rock metal with one band, and use the SVT amp emulation for that, and it sounds fine to me. I like a bit of grind in my tone. For more vintage tones, I've used the Bassman emulation. Really, though, you can get any tone from this box, from ultra snappy clean to heavily effected amp emulations. I'm not going to go out on a limb and say that tonally, the B-3 produces the most transparent, pristine tone, but it is a great bang-for-buck utility pedal IMO.
What are your settings on the B-3 and why is it you say that the B-3 DI is no good?