Probably Xavi. He might the oldest of the lot, but he's way fitter than Cesc and Andrés, who are quite injury prone. Xavi, on the other hand, is one of the fittest players on the planet despite being almost 32, which is mind-boggling. Unless someone breaks his leg (God Forbid!) or something, he'll play more than any of our other center/attacking midfielders this season and he'll continue contending for best player awards every year well into his 30s, only adding to his legend.