Aguilar's Tone Hammer DI pedal review for beginners (long …
The difference is the Tone Hammer works for you instead of against you. Now, the VT Bass is a whole 'nother can of worms. I'm fond of it also, at least for some specific tones. There's a sharp, pointy presence in it that you can't really get with the Tone Hammer, and yet it doesn't have that huge low end problem like the BDDI.