They are the same company, so I'd have thought $ for $ they would have the same inbuilt quality.
Interestingly, this site does comparisons (looks like US cars/drivers)....
http://car-brands.axlegeeks.com/compare/9-12-26/Land-Rover-vs-Audi-vs-Volkswagen
While there were more problems with new LR cars, than Audi or VW - once the cars were 3 years old LR was much more reliable than the German brands.
LR - 98 problems per 100 cars.
Audi - 134 problems per 100 cars.
VW - 169 problems per 100 cars.
That's according the the JD Power Vehicle dependability study of 3 year old cars.