Zidane was legendary in every club / generation he played in, that 2006 WC run was better than his 1998 run, made the whole brazil team with R9 & Dinho looks like children.
Peak Iniesta legendary also, people should stop brining Xavi into discussion when talking Iniesta & Zidane !!
Yet it is always that 2006 run, especially the game v. Brazil linked above, the 98 final with the two headers, the 2001 final with the nice volley, and maybe EURO 2000 too, that gets brought up.
He won three leagues in his entire career, yet he was clearly the best midfielder in the world, able to play for insanely stacked Real Madrid and Juventus who both won the league more often both after he left, and before he arrived. For most of his career he was questioned by his own fans and the entire world, it was like that in Juventus and it was like that for most of his time, in most of the games in Real Madrid. Their fans expected more from him.
That game v. Brazil was very nice of course. It is legendary mostly because Brazil with Ronaldinho were so hyped, and France were large underdogs in the game (despite having a very stacked team) so the win was unexpected, and 34 y.o finished Zidane playing well was also unexpected. He made the assist and some very stylish and nice things in the middle of the pitch, but it wasn't as dominating as you'd think. I am sure the youngsters who only watched the 4 minute clip above and not the game when it happened will agree. Messi did more than that in the majority of his games...
To summarize Zidane, he was an extremely talented and stylish player who happened to decide a couple of finals and play a few more great games at the right moments. To compare him with Xavi who won more than twice the titles and who was crucial in making his team dominate every single game, is pretty insane. Only in video compilations could Zidane compare.