Over 90% of people voting for Djokovic-Wawrinka are Federer fans. Federer fans who want to exclude Nadal from this category and have so little objectivity that they vote a match of Wawrinka (?) over the classic masterpieces of Nadal and Djokovic.
Wawrinka is an inferior player than Nadal or Federer. Therefore any good match of Djokovic involving Fedal is superior to a Djokovic-Wawrinka match. The AO 2012, RG 2013 or WB 2018 matches achieved a much higher degree of playing level and historical relevance than the Djokovic-Wawrinka match, as Wawrinka cannot match Nadal's playing level or historical relevance.
Nadal having chances to defeat the AO GOAT Djokovic in THE LONGEST GRAND SLAM FINAL OF ALL TIME has a much higher historical relevance than Djokovic beating a non-ATG like Wawrinka in a random AO 4R. The AO 2012 final has much more historical relevance than the AO 2013 SF.
Djokovic having chances to defeat the most dominant player ever on a surface in the RG 2013 semifinal implies a much higher historical relevance than Djokovic beating a non-ATG like Wawrinka in a random AO 4R. The RG 2013 semifinal has more historical relevance than the AO 2013 SF.
Nadal and Djokovic producing a marvellous shot-making battle in the Wimbledon 2018 semifinal implies a substantially higher degree of historical relevance than Djokovic beating a non-ATG like Wawrinka in a random AO 4R. The WB 2018 semifinal has more historical relevance than the AO 2013 SF.
And to suggest that the AO 2013 4R has a better level of tennis than the AO 2012 final, RG 2013 SF or WB 2018 SF is just trolling to eliminate Nadal from the best match category. Nadal is a superior player to Wawrinka on any surface and obviously produced a higher level than Stan in those matches.