I own an RBI and it is awesome. Obviously if you want the sansamp sound it does that. I tried the BBE and it was good but I thought it seemed more suited to cleaner sounds, didn't really have the grit factor that the RBI has and the built in sonic maximizer was not interesting to me. Alternatively you could check out the RPM as well, basically the RBI without presence control but with more mid eq. Both the RBI and BBE can be found pretty cheap used.