This is an idiotic review. There are so many things wrong with it.These cameras are completely different. Their only similarities are their 4k capabilities and the fact that they are both cameras. It ends there.You gave a point to the Sony by saying it has more mega pixels. The Sony has 20mp covering a sensor half the size and therefore the pixels are super small. Why do you think the top of the line Nikon and canon cameras have 35mm sensors with half as many megapixels than their cameras that cost thousands of dollars less? Because bigger pixels are better! So not only is the gh4's sensor twice the size but so are its pixels!You also state that you can't get better codecs out of either camera other than avchd. Wrong again. You can attach an external recording device to the gh4 and get uncompressed 10 bit 422 apple pro res and that's all most videographers and cinematographers working on a really tight budget will want and use due to the cost of raw let alone 4k raw.focus peaking, wave form, zebras, SDI, xlr, pl mount compatible for true cine lenses, the fact that you can control focus at all! You can use any passive lens you want with the purchase of a cheap adapter and a few active lenses with more expensive adapters, large sensor that actually gives you dof control, and countless other things that make it a far superior more professional tool. Just the fact that you can throw thousands of dollars into one of the cameras and what you get is what you get with the other is telling.This is Panasonics top camera in their lumix line! And ever since the gh2 they've compared these models to the canon 5ds and 7d in the video realm.The gh4 isn't a professional camera but it will be used by professionals and that's a fact but not one pro worth his salt will touch that Sony or ever even know it exists.So please stop insulting the gh4 and do some research man! People apparently read your stuff so please don't lead the astray.It comes down to this. Do you want a camera that does everything for you and shoots crappy 4k or do you want control, a system to buy into with professional features that has the capabilitie to shoot uncompressed cine 4k.