This is my simply list of the 3 best players for 4 different ages : 1863 - 1914 : Schlosser - Bloomer - Piendibene 1914 - 1939 : Meazza - Sindelar - Scarone 1939 - 1970 : Pele' - Di Stefano - Puskas 1970- 2000 : Maradona - Zico - Cruyff 2000 - 2015 : Messi - C. Ronaldo - Neymar
Romario has been a great player, but in the 1990s....Zidane and Ronaldo are been fantastic players, but Neymar will become better than them in next 2-3 years.
No way Cristiano Ronaldo should be ranked higher than Ronaldo or Zidane. But I get what you say about Neymar, in terms of potential.