Grinder and if they ever invent an electric smart grinder so that my old hands can just press a button and grind away, I'll get one
Plastic grinders, cheapest version, sometimes given away as publicity, are best. Using the same one over and over improves its grinding quality up to supersmooth grind experience. Don't clean it either, as the build up of resin will give the teeth a resin varnish and you'll technically will be breaking bud with bud. It's the AK47 of grinders.
which do you prefer and why?