Before I switched to digital, I had a darkroom, and shot color and B&W *NEGATIVE* film as it was, and is, the easiest to print for a traditionally trained dark room worker. I down sized, gave up the darkroom, and started scanning 6X6 Hasselblad, Pentax 67 and 645 negatives, and various 35mm negs with a (then state-of-the art) Polaroid 120 Sprintscan scanner at max resolution (I recall it is 4,000 ppi), and saved as TIFF. I found the negatives much easier to scan than the few slides I tried. The slides tended to blow highlights or block shadows. Kodak has released new color neg films "Optimized for scanning". If you have the time, I would shoot both neg and positive and get them scanned, and see which works best for you.
I do very little architectural work, and just sold my 24mm TS; the little bit I do I post process.
Good luck with your project.