What is your favorite primer?

[iwerk2hard]

I'm partial to CCI primers.
My guns are capable of shooting better than I can, therefore I've never shot any competition, just recreational. I've not found primers that I can blame for lousy groups or missed game, although some loads do seem to perform better or worse with a single component change such as primer.
I've heard more than once that the CCI primers are less susceptible to gang explosion while using hand priming tools. That's enough to sway me right there. On top of that, they seem to feed better in my Lee hand priming tool.
Opinions will vary with need and past experience.
That's my 2 cents.