The B3 supposedly has some killer Rat and Muff simulations that can all be blended too, I have one on the way and can't wait to play with it. I Was not that impressed with the B2 so we'll see. Regarding the ODB-3, it has a monstrous low end, and while it can get fizzy, it sounds just fine as long as you don't boost the treble much and don't use a tweetered cab. It does have an inherent mid scoop though yet can still be heard, and is the cheapest way to make your guitarist sh*t himself for sure.