O.K.you asked a question. That pre-supposes that you want an honest answer. If you want the best from medium format, shoot film, develop your own film if you are doing black and white, print on silver paper.
Taking the above as the parameters from which you would be operating, if in fact you are sincere in wanting the best results, then I would shoot slow speed film (efke comes to mind). Don't stop down your lens any more then absolutely necessary (limits the effects of diffraction). Use only a tripod mounted camera for your exposures (movement becomes apparent at enlargement). Learn the characteristics of your materials based on your operating conditions. (the EI and the proper development times). I wouldn't print any larger the 11X14 maximum (preferably 8X10) from a 6X4.5 negative.
Most Important: THERE ARE NO SHORTCUTS...DO THE WORK...DON'T RELY SOLELY ON THE INPUT OF OTHERS.
Originally Posted by rrobinson54