>>3250866>>3250184gx80 is the same as gx85, just another name for different regions. At its current price it has very good video features, but it has a few caveats, the main ones being that it has no external mic input, and the screen tilts but isn't fully articulating (for instances where you want to film yourself).
The g80/g85 is essentially the same camera with a dslr style body, is weather sealed, and has the external mic and fully articulating screen, but is a couple hundred more.
The g7 has similar video options, external mic and articulating screen, but it does not have ibis. It did go on sale a couple months ago for ~500$.
Depends on if you plan on using an external mic, articulating screen and want ibis (you can google to see how much of a difference it makes, its pretty significant).