...I haven't owned nearly as many OD's as some on this forum, but have had the following:
Bad Monkey...
I would definitely choose the Mojo Drive over the Bad Monkey. The Bad Monkey is a great pedal for the money, but it doesn't give you the versatility of the Mojo Drive. With the MD, you get true bypass (important for some), 3 gain structures, and more gain on tap. Also, my Gries is a blackface style amp, so the MD should work very well with your Twin Rvb (to be fair, the Gries is an excellent platform for most pedals)I've been using a Bad Monkey and I really like it but it just died on me (lights up but passes no signal). I run my Bad Monkey about 11 o'clock gain, bass and treble around 3'oclock into a twin reverb- how does the MD compare in your experience? Think I may dig it as it higher quality replacement for a mid gain fuller bodied overdrive?
Sorry to the OP, not meaning to derail for my sake alone. Guess you could say I'm interested in the answer as well.
You should also be aware that there are two versions of the Mojo Drive - the newer "stealth" model has a few component changes that are supposed to tighten up the low end even more (I say this from recollection - I think there is a better description somewhere, maybe on the eBay auction where I got mine). I had a big box version before this one, and there are some subtle differences. I found the big box version to be a little more "amp-like", while the stealth version has a tighter and more defined overall tone. I really liked both, but for my application I ended up keeping the smaller stealth version.
I had the mojo stealth version. It sounds good, but not as smooth as the LDO. The LDO has something that the mojo doesn't have. It sounded nothing like an Eternity. Not as warm. That is compared to en older burst. Not the new "eternity". I ended up sending it back. The mojo is killer for VH type harmonics when you crank the gain. It was also noisier than most ods I have had. I know about 20 people will say that it is quiet, but the one I got was quite noisy.