In the course of a year I probably see a gazillion rounds of Blazer go downrange and love the stuff for training. Unless you enjoy reloading, which I don't, I'd go with Blazer. In the long run, bought in bulk, I think it works out as less expensive, too.
Just my opinion, but I have found ammo named after large feral canids and those that print their names in decorative script to be dirty and less reliable than others. Short of duty rounds, Blazer does it for me.
Incidently, in the training sector, I have'nt noticed any effects on the guns from Blazer. At one time H&K would'nt let you run it thru their range subguns, but I thought they were just being snotty.