I'd go for Panasonic, or even better Blackmagic Design. Nikon might maybe even get a longshot chance at a look in.
But I'd highly recommend you also get yourself well versed with color grading, especially when such amazing tools as DaVinci Resolve are FREE!
Fuji always has nice color, just, they've never really been into video that much and have only realized highlighting that now as well, so they're a little behind. No sensor stabilization either, whilst the others have implemented that already. Sony usually needs the most tweaking in-camera and in post regarding color and otherwise has those mentioned issues. Panasonic has come quite the way over the years. After the GH4 we've seen the G7 and others that were actually very pleasing, the G9 gets lots of love in the first reviews, but the GH5 is sorta around that level, has better high-end vid features. Would definitely wait for this GH5S announcement tomorrow, though, could be a cinematic beast!
