I considered em all, but my brother who had been loading a lot longer than me, had the Hornady, LNL, AND LOVED IT. He used it for a couple years, and kinda talked me into it, My big concern after using a couple of Lee
Pro 1000s was I wanted one that could do both rifle and pistol cartridges. My brother assured me it would do both really well. After looking at the Lee which uses the bushings for each die, LNL like, and the different shell plates, 7 in all, price would have been slightly less for the Lee. And they now have an auto drop powder thingee that looks a lot like the hornady, I really like that option.
Price wise I think the Lee is least expensive, and Dillon the most expensive. They all work, just what you want , and the company you like the best.