I have tried every type and brand of abrasive I could get my hands on in the last 13 years I owned Festool sanders. There are definitely huge differences between brands.
Best ones I can think off are Festool, SIA and Indasa.
I have had good success with Mirka Abranet, especially in the higher grits. Generally that is only with harder plastics though, Solid Surface acrylic/polyester and blends.
The softer materials, like 3Form, take a bit more polishing rather than actual sanding.
For simple wood sanding, I'm still in favor of Festool abrasives.