msd or mopar hei ?

being a shop, i have installed about 15 systems this year so far. well, i have have had only 2 bad distributors that were the 1 same chevy part #. other than that, no problems. a 6a box, a blaster ss or original canister style coil, and a 2 wire distributor is a 95%+ solid system. i think that fbo has a great system for chrysler style ignitions, but for a different type, i choose msd for its versatility on the spot. tuning is easier. once tuned, i bet there is hardly a noticeable difference once punching it to wot. but to each their own. original or aftermarket??