Based on legacy, aura, and all that
it should be Messi, Xavi, Iniesta, Ronaldinho, Rivaldo, Romario IMO
Eto'o and Suarez next
The option wasn't available
R9 stayed only one season, and given he went to Madrid, is out of the question
Maradona stayed little and didn't shine here, but later elsewhere
It has to concern players that shined here and their biggest achievements were here