I've got a Quaife in my DSG been fine for two years now, fitted one to Hurdys years ago too, I've managed to re-use the bearings on the DSG's we've done so far, got to be careful popping em off though ! they were all low mile cars so no wear
I'd say after driving them it's hard to choose which is best, up to now we've had no problems with Quaife or wavetrac not tried the others yet suppose everyone has their own fayv
Weve done a wavetrac today on a manual very easy job compared to a DSG! All good though