I like the Hornady lock rings because they use a cross bolt instead of a set screw.Pistol caliber dies can be hard to find right now. Up until a few weeks ago, I used only RCBS dies with great success. After I bought a Dillon and their dies, I am more pleased with crimping as a sole operation rather than seat/crimp with the same die. At any rate, opinions are just that, and most any die will work.
Although I leave my dies set on the turret press, when trying to change dies on the single stage press, it was challenging to remove the die while retaining its position in the lock ring. The lock rings on RCBS dies uses a brass set screw which is very soft, and in my opinion doesn't work very well. At one point, I replaced the brass set screw with steel and put a piece of lead shot between the set screw and die threads. Still not satisfied, I bought the Hornady Lock-N-Load conversion kit so that I can leave my dies set. In my opinion, the Lock-N-Load conversion kit is far superior for changing dies quickly no matter the dies you purchase.