Over the years I've had just about every die makers brand in the cabinet. Some have been great, some okay, and some will never be in my cabinet again. Redding is one that you'll find a lot of folks rave about. I won't own another set, even for free. Even their match dies are crap in my book as the set I had for my 30/338 benchgun left the necks with a 5 degree cant on them. Try chambering that up in a tight neck rifle. Of the 3 sets of Redding I've owned, all have taken the ride to the dump. I'm not a fan of Lee rifle dies although I much prefer their pistol dies. Their pistol dies are SO much easier to adjust when loading for different pistols of the same cartridge. Lee warranty is only 2 years and proof of purchase is required but sometimes they don't ask. Hornady dies can be decent so long as you never intend to load lead or plated bullets. The issue is with the bullet seater. It has a sliding sleeve in the die that holds the bullet perfectly in line with the brass. The sleeves are an exact fit for jacketed ammo. Take a 444, for example. The sleeve is exactly .429. If a plated bullet is .430 or a lead bullet at .431, neither will fit in the sleeve and you can't seat a bullet. RCBS warrants their dies and while they are not perfection, they hardly ask any questions, just send it back. I've had their carbide sizer go bad. I called, they didn't ask why, just send it back. Before I could send the sizer die back, I already got a complete set of carbide dies from them. But like most of the makers now, it's Chinese crapola. I've had RCBS shellholders with no slots for the rim of the brass, slots far too small, slots so sloppy the round falls out. The only good is that they will replace it with few to no questions asked. I've had Lyman dies and nothing but issues. Lyman is pretty much low end Chinese junk now. Old Lyman- good stuff.
I'd suggest buying RCBS dies at a gunshow used. If there's anything wrong with them, including missing parts, RCBS will take care of it. They have the best warranty in the business and that counts for a lot. BUT, they usually come with a brass set screw on the locking ring. Order a locking ring from any of the online suppliers that does not use a soft brass screw. First time you strip one out, you'll understand why.