Yeah C100 100% (color, Internal ND's, XLR options for sound)

Yeah I second this motion. I owned a GH4, A7S, 5DIII but I moved up to the C100. Those internal ND filters are heaven, the camera is really low noise and sharp, a real log profile, 12 stops DR, and amazing colours. With an external recorder you could get a C300 like image(which a lot of Palme D'or winners have in common, maybe because the cinematography does not get in the way and you can fix more on story and on the performances of the actors itself)