guise, I'd like to upgrade my camera to a 4K camera. I have a shitty camera that takes 1080i and it's always a pain to edit and make it look well.
I've been looking at LUMIX line because of their reputation for making decent stuff at a good price. All of these Panasonic models are in my price range but I can't figure out which one I should get.

G85 ~$900 (w/ kit lens)
GX85 ~$600 (w/ kit lens)
GH4 ~$1000 (body only)
G7 ~$600 (w/ kit lens)

Which of these would you get? What are the pros/cons of them? Thanks!