Particle Accelerator. I enjoy the Slampegg, too. Neither are my favorite of the bunch, but I'm very impressed given the price. Also, in a live setting, I'm much more comfortable putting a ~$200 pedal on the floor than a Noble.
I'm surprised by how good the Sushi Box sounds, especially against the Noble, Oracle, and P-15. I think the P-15 and Noble are my favorites, but the Sushi isn't too far behind... and the Sushi Box costs pennies compared to a Noble.