Who makes a Good Big Pipe these days?

Robertsons Torque Tubes makes some really good ones, but have heard that the Black Max from ARC is supposed to be a great pipe for clones, im gonna give one a try this year when i can afford to get a few new things. For me, its either the Black Max or the SEK Advantage 2, but i have nothing bad at all to say about the Dover Holy Moses pipe i have been using for the last 3-4 months either, its a great pipe as well!
Every motor is differant as to which they will perform the best with. Exhaust is as much a part as cam and carburetor choice nowadays.