Mascherano and the two Chileans that interchange for the National team, Vidal and, uhhhhmmm, his mate who's name escapes me lol. Yeah, Vidal is more box-to-box on a club level. But he's very adept at playing the holding role.
All slightly better defensively for me. But I'd be more than happy with Matic in that role in my side.
Charles Aranguiz (sp) excellent player soooo underrated. Although him and vidal are more box to box. So that means matic wins by default.