and I either have time to just upload the 6D jpegs, or have DxO9 do it's thing on "automatic fix" then upload to SmugMug. So, which is better- auto program 6D in camera or DxO9 auto?
I wouldn't know about DxO auto processing (I'm using LR), but I'm very confident Canon's in-camera image postprocessing is very completent by now if you've found the picture style settings you like.
With daylight shooting the advantage of raw comes down to the greater dynamic range. If you want less clipped highlights, it's worth using it - the amount recovered from raw files is a bit smaller than on crop cameras though. Your example shot wouldn't profit from it as it's a medium dr shot as even the whites in the bokeh are proplery exposed already. If there would be bright sky or hard shadows, that's another story.