For hard rock/metal I love colorful dirt: Darkglass B7K, Tech 21 Oxford, etc. Also multiband OD: Brimstone XD-2, VFE Triumvirate, and I have a Tech 21 dUg pedal on the way in. That said, I often stack the MBD-1 into these pedals. F'r instance my B7K is set fairly low gain as my always-on tone shaper, and I LOVE kicking in the MBD-1 when I need more crunch.
For traditional styles of music I prefer neutral OD. The MBD-1 is perfect, at any gain level. Bottom line is that I don't use any pedal 100% of the time (I rotate 'em just for grins), but the MBD-1 can easily be used at 100% of my gigs, whereas I hesitate to use my colorful pedals for traditional genres.