Use Portra. It's higher resolution and has a more "realistic" palette. This is film not digital. You are not shooting a RAW file that you can manipulate in Photoshop. I scanned for a long time before I started doing darkroom printing. I haven't done any color printing. But with my B&W negatives once I started printing I changed films, developers, personal exposure index, and developing time and agitation method. Obviously with C-41 unless you are feeling really adventurous a lot of that will not change but choice of film and personal EI may. Get things as right in the camera as possible and you will make your life a lot easier in the dark room.
Originally Posted by hencz