I've tried Abranet, Abranet Ace, Klingspor mesh, Granat, Rubin, and here's what I've settle on:
Granat for up to P220 for majority of projects - used on wood, and anything requiring heavy-duty removal
Abranet Ace for higher grits and for use on materials prone to clog
I'm phasing out the others. The least useful to me was Klingspor mesh.