Oh, you will be surprised. I am currently working on compiling the list of opponent of Nadal at RG. The glaring "curiosities" are out there. Comfortable opponents, difficult opponents thrown on the other part of the draw, dark horses as far from him as possible. It is all there. Ferrer was in his part of the draw 10 out of possible 13 times, and one time he wasn't he has beaten him at the AO that year. Almagro was literally scheduled in Nadal's draw at RG. Thiem being thrown in his opponent's part of the draw in the last 4 years. It is a farce.
As for the other part - looking forward to seeing your list and conlusion. I hope it is not biased.