All of this is certainly overwhelming.
To clarify, I no longer have the M6 or the Rolleiflex. I have one 35/2.0 M lens with a focus ring that feels like it has sand in it. Otherwise, only my iPhone. Also, I am reluctant to go back to an SLR form factor system.
And I have been sitting around looking at negatives, contact sheets and enlargement prints from those two film cameras and comparing them with the digital JPEG images from my iPhone and those poorly-exposed X100 snapshots that I mentioned, (I know, it is an unfair comparison) along with the dozen or so Leica Q snaps I shot in the store. Quite a bit of disparity among all of this, all the way around. I really don't know the fine details to look for except for the aesthetics overall, trying to figure out what I like, what I would like to create, and then what system seems to produce that or better.
Many of my favorites were those from the Rollei (I am going to make duplicate prints and scan the negatives of those of my wife in Paris, as they are the best of her ever in our 31 years together and I would cry if I lost them), and it appears that those images don't really have the sharpness or detail of any of the others, but do have a wonderful dynamic range, bokeh, almost tactile quality without being simply soft. I obviously don't know the terms to express that "feel". (And perhaps, this is something that I can learn to develop in Lightroom???)
The M6 images were similar, but a bit more defined, at times clinical with certain lenses, but with others in the same vein as the MF. But again, I really do not I want to go back to film, though, setting up a darkroom, then scanning, etc.
So far, looking at web images, there is so much more detail in a lot of images to the point of being hyper-real, which I am not drawn to. But when I play with many JPEG images in Lightroom and find very limited flexibility to pull out shadow detail, etc., I realize that having more, and more precise, data can be a very good thing in a file. So where is the balance?
(And I know that I need to work from RAW when I do have a camera.)
I have been drawn by the qualities/character of some images that I have found from Fuji XF 35/1.4 and 56/1.2 lenses, used on X Pro2 cameras. Beginning to lean in that direction, but have no option to rent or trial the equipment first. I admit that I would like something that is as simple to use as the Leica Q, but not at that price or with that lack of flexibility. Am I getting too picky?
I love Leica, but am not a brand snob. I like the form factor, the unobtrusiveness of taking pictures with one. Heck, I drive a 12-year-old Volvo wagon with 250,000 miles on it, and have kept it looking like it just came out of the showroom, because I really like driving that always-reliable car! But someday it will need to be replaced, and if I were to buy an M10 system, I would end my days driving used Kia compacts.