Which clutch is best, Borg and Beck or diaphragm?

You need a 3500# Borg & Beck:rofl: Have to build them left leg muscles up in your old age. I found a 3200# Schiefer B&B that I put in my 68 GTS, Wiped out the cam on getting it running, so I never got to drive it. It was a brute though. I had to many Chevy friends that had the diaphragm PPs back in the day. I always preferred the B&B.