I am an old farm boy who has been butchering and using grinders of every type for 50 years: hand-cranked, home made, and commercial.
I finally researched carefully a few years ago and bought the LEM 3/4 HP (has a #12 throat, as mentioned above). This thing is EXCELLENT, eats goods sized chunks of deer meat faster than I can shovel it down the throat, and gives excellent, consistent grind quality. Found it on sale for $100 off, and it has been a great purchase.
I would heartily recommend it!