Folder, please 🙂
Sensor size is the major factor here. 6x6 trumps 2.4 x 3.6 by a very large margin. It doesn't matter how many pixels the DSLR has, you are still taking pictures with a 24x36mm sensor. And you will need to blow them up far more than the MF camera to get the same print size. So any defect or aberration in your lens is going to be obvious in your prints. That slight color-fringing near the corners is going to be an inch wide on an 11x14 sheet. Even if you have detail in there, it's going to look smeared.
But if your sensor is twice the size, the same lens flaws will be much less noticeable. And not being confined to a restricted color gamut when you print means your MF film shots will have truer colors and smoother tones. Even a 50MP 6x7 digital sensor would have a restricted color gamut.
There are so many differences between a mf film folder and a new DSLR I cannot really perceive one as an alternative to the other. I really cannot see a 24x36mm DSLR as somehow on par with MF as far as enlargement ability or image quality goes. But if you are printing digitally anyway, it's probably more suitable.
They are your pictures. I don't think it matters what camera you're using if you don't like the shots. But at least with the film camera, you can change the film to get a different look you might like better. With the Canon, you are stuck with the way it captures light. No matter what, at the end of the day the digital sensor is only going to capture so much red, so much blue, and so much green. And in a grid pattern, merging anything that is projected onto a sensor site into one signal.
I love film so much that it would please me to agree with you, but i just can't.
1. Doesn't much matter that the film area is larger than the digital sensor. They're different animals and surface area alone doesn't account for one's superiority/inferiority.
2. The supposed superiority of medium format film over digital really is only valid with the fastest, finest-grained film. Above ISO 400, digital is just better with regard to noise/grain.
3. You can enlarge a 5D or 5DII's files with gradual uprezzing to get incredibly large print sizes. And, if you add simulated grain, you can obscure any digital noise or artifacts so as to go even larger. 6x7 film can go larger, but it's all moot until you reach that threshold. I suspect those of us who aren't exhibiting in galleries aren't reaching that limit.
4. It's misleading or inaccurate to suggest that a digital sensor is only capable of rendering images in one way. Yes, you can change a roll of film and get different characteristics. But, similarly, you can process a digital file to get different characteristics. Even before you reach Photoshop, you can process a RAW file to get different characteristics. And, once a file, originating from film or a sensor, is in Photoshop, it's all moot once again. You're not "stuck with the way it captures light." You're free to manipulate it as you choose. You want it warmer, it's warmer. You want it with more contrast? You have it. Less saturation, fine. Cross-processed? Bleach-bypass? Whatever.
Speaking about sensor sites and "one signal" is like talking about brush bristles instead of paintings.
One look at a current issue of Vogue will show you that the work of twenty different photographers, virtually all of which are using Hasselblad H cameras with digital sensors, all looks different, despite the "one signal" and 'inflexibility to capture varying amounts of red, blue, green.' And, there aren't many RFF readers who are dealing with clients who are that demanding, working with such tremendous budgets and under such scrutiny.
So much of the 'scientific discussion' is irrelevant in real world circumstances. Color gamut and dynamic range, for example. People don't shoot Kodachrome to get the maximum dynamic range. If you made prints with an emphasis on showing maximum dynamic range, your prints would probably be pretty flat/dull/uninteresting. When i look at Penn or Koudelka or Meisel, dynamic range isn't part of the appeal.