My useless opinion...
All major DIE makers products will work. If the product was crap, they would have been fixed/dropped or the company would be out of business by now.
Standard versus Small Base.
Small Base dies work the brass more. If your chamber is very tight, you may want to go to SB dies. I load for over 1/2 dozen .223/5.56s and use standard dies. The next barrel/chamber I get may well require SB dies.
Neck only or full length sizing.
Neck only is great, less working of the brass, tighter fit to the chamber... But, eventually the shoulder will need to be set back, just a little. Also, processing brass from several chambers for use in several chambers, kills the viability of using neck only sizing. Auto-loaders seldom like loads that have been neck only sized.
Not mentioned in your OP is case length. I am a stickler about trimming every loading of my brass. Well, for .223/5.56 brass anyway. I also check for web stretching every loading.
And, crimping. I don't/seldom crimp. I also break down a new die to clean it and chuck up the de-priming rod and polish the expanding ball, smoothing the shaft below and above the ball part. Take care to only polish and not remove diameter. Maybe the word burnish would be a better description. The smoother the de-priming rod/ball, the less case is stretched and the longer the case will last. What does this have to do with crimping? No crimp is needed if their is a good hold from the neck to the bullet. Crimping adds more problems than it fixes. (Note, some powders need a stiffer/harder bullet pull to build pressure for a better burn. Then there is bullet walk in big bore revolvers, yes there is a need to crimp some of these.) A crimp only forces the need for a consistent case length and trimming.
Hope this was/is some help. If not, just move on to the next entry.
End point. You can do anything that you can get by with.
Load with care.
