What, Dan? Are you just trying to shout every body down here.?
So we can listen to this guy, who actually went from Pentax to a 6D and then back to a K-3II, or we can listen to you. Notice he's owned both cameras, so don't try and play the "if you haven't tried it" schtick.)
https://www.pentaxforums.com/forums/172-pentax-k-3/305561-pixel-shift-k3-ii-t...-print-13.html
Since you own both cameras... are you going to post that quintessential comparison, K-3II vs 6D that is going to show use conclusively what you are talking about. You've actually done a lot less work than the guy above, he's actually printed, and compared results. What have you done? You've presented not a single comparison image to support your case.
Since we already have people who've gone from a 6D to a K-3II and I know landscape/wildlife photographers who've left Canon because of dynamic range, The fact that you discount the difference in DR at low ISO for landscape , makes me ask "what kind of photographer is that?" I'm just going to have to put this whole series of posts into the category of "this guy doesn't appreciate what I and pile of others appreciate." And given the lack of example photos showing the difference, I don't even know if you know what you think you know, or if the fact that you know which camera took which image means you are saying the 6D image is better, just to justify your purchase of a 6D.
You'd think a guy like you, if you had anything, would have a couple of images to prove your point. If I was going to make a series of posts like that, I would have done that before I launched into the rants.
This is what I tell everyone. Read everything you can find on a topic, evaluate the writer, go with the guy who is most like yourself. IN this case, two Pentaxians who have 6Ds, I'll go with Ed. He's more my kind of shooter and understands the kinds of values I understand. You, I have no idea what you're pimping. A picture is worth a thousand words. IN photography, where the same words can be used to describe different things, and different words can be used the same things, a picture isn't worth more than a thousand words, comparison pictures are the truth. Words are sad descriptions of the truth.
My conclusion after reading thorough this and looking at your sunlit valley, ya, you really don't appreciate DR. Your shadows are black and not very life like... since you seem to like that, you're a perfect candidate to be a Canon guy. Personally, I was taught and have followed the principal, go for maximum detail in landscapes, every where, highlights, shadows etc. that means maximum Dynamic Range, a 6D is pretty much irrelevant to my shooting, and many others as well. A 6D is just as good as a K-3 for landscape/wildlife.. in your opinion... and who are you that you think your opinion should matter to me?
If I'm going to switch camera systems, I want better for what I do, not the same, and I'm not even seeing "the same."