France defence, Thuram, Gallas and Vieira-Makelele duo carried France for most of that WC. Zizou is my all time 2nd favourite player after Ale, but he did NOT have a consistent World cup, he had so-so group stage, decent game against spain, out of this world brilliant one against Brazil, and good WC final performance. Before that Brazil game, no one was talking about him as the best french player even, that game alone settled his "status" in that WC too much.
Consistency wise, I consider both Cannavaro and Pirlo to have had better world cup, with Buffon close too. Despite Zizou being better to watch. In fact its ridicolous how overlooked Pirlo was in that WC. If your memories are shorten by the awe of the Zizou against Brazil, recheck match reports, everywhere Pirlo gets man of the match top marks in games, while Zizou was said to be inconsistent or not delivering enough up to that Brazil game.