I've never seen a set of radars like this, and honestly, we might never see them again. All of these seasons are good. 2009-10 and 2011-12 are legendary, and regardless of how many years of data we look at, will almost surely rank as some of the best midfielder seasons ever.
Xavi is and always will be one of the game's greatest passers. This is completely obvious if you have seen him play at Barcelona over the last decade. The statistics can't help but to agree.