I will admit that I am a sucker for unique and premium equipment.
In the world of strength training barbell clamps are the equivalent of the mousetrap. Everybody seems to agree that there has to be a better way.
I despise spring collars
Plastic collars never hold
I do like the OSO collars and have a couple of pairs
These collars are cool
Eleiko came out with the Open Collars
Screw down collars exist
Competition collars are out there as well