Zidane without those goals v brasil and headbut would have been forgotten as his Juve and Real days were extremely inconsistant, he shined at bordeuax and for the national team at times but wasn't as great as made out.
Platini, Viera and dare I say Deschamps and Makelele are all better french midfielders as their club form and international form were both consistant in their prime.
Kev is better imho but will never be recognised as such because of no world cup or ballon dor to date
no one can get near Diego though he was the greatest there has been