I see that you're unhappy with all of them due to slow lenses for low light. MF will always have slower lenses than 35mm and LF will have even slower lenses that's a given. Even if you can get fast lenses I don't think it would help much in term of low light shooting. If you have to do low light hand held and/or subjects move then I don't find any film camera works well for that. But if the subject doesn't move then it's not a problem with slow lenses. Besides, I don't know about you but I can't shoot wide open even with 35mm and doing so with MF I would have much shallower depth of field. I know a lot of people love to take picture with an f/1.2/ f1.4 lens wide open but I never find an image that I can successfully make with such a shallow depth of field.