I prefer to shoot bulk due to costs, so here's my results:
1. Federal (bulk)
2. Winchester (bulk)
3. CCI
Never tried Blazer (or seen any in these parts).
I've not had much luck with Remington - got a friend that just got into shooting, and he called me up the other day, telling me he was having 25% failures with Remington in his Ruger - he got a S&W 15-22 and still had problems (he's in the process of trying to get rid of all his Remington).
After my experience / experimenting with various brands, I ran a poll in here probably 3 or 4 years ago to see if others were seeing the same results as I was.
The result of the poll seemed to mirror my findings.
I'm only grading on FTF / FTE, etc - haven't really compared AFA accuracy, but the bulk stuff does fine by me in the accuracy department.
My 15-22 does seem to have a minor problem with Winchester 555 bulk feeding 5%? of the time, but comparing bullet shapes, it's the flattest nosed 22 round I have in inventory (and I tend to buy / try anything).
I prefer to shoot Federal and Winchester bulk ammo, and if I have to drop back to something a little more reliable, I'll shoot CCI only to break in, test, etc.