Which is most reasonable to get? Canon G1x, Nikon p7800, or Canon G16?

I like that the sensor is largest on the g1x meaning better image quality for the most part, it is also a bit large and lacks macro capabilities. The G16 does not have a flip out screen or large sensor, but is faster than the G1x in terms of autofocus. The p7800 has the flip out screen and takes better macro. My main concerns are the macro capabilities, image quality, and flip out screens. I'm planning on buying used (or new), so I don't plan on spending much more than 400. Which camera would be best for my concerns and is there any other cameras that would meet my criteria with image quality of the G1X, speed of the g16, and macro of the p7800? I've looked at the g1x mark ii (Which I think is perfect), but can't find it in my price range.

Actually, the G16 has the closest macro range, 1 cm.
http://www.dpreview.com/...on_cpp7800

Don't know where you are going to get any of these cameras for $400. I would check out any vendor very closely that is offering any of these for $400.
http://www.amazon.com/...00EZAYD4A/
http://www.amazon.com/...006UMM2BW/
http://www.amazon.com/...00EFILHB4/

My preference is for the Nikon P7800. I have the P7000 and have never been disappointed in it.