Frankly, I hate to be a party pooper here, but I cannot tell the difference between one pellet or the other. This is true for taste, i. e. flavor, and for cooking performance. Because neither of these is a choice determining issue, the one single factor of influence is price. Between Academy Sports and what they carry and Tractor Supply, I have my source of pellets, loaded into my vehicle, purchased in bulk and unloaded by my wife at the door.
The other point that I have to make is the "my" pellet smoker, a Yoder 480, is used mainly on long slow cooks of either brisket or pork butt and operates at 225 degrees most of the time. I have not yet used my pellet smoker over 350 degrees and I do not care to as I have a Weber Kettle that I use for direct grilling and other interesting ways that I have learned to deploy the device. Unfortunately, I have purchased Grill Grates for the Yoder, which I am sorry that I did, because they have never been used and probably will sit on my garage shelf until I die.
I guess it is all in the way you want to utilize your pellet smoker or grill and what taste or benefit you get from realizing the flavor of your particular benefit. I can't see it or taste it at this point in time.
That's my 2 cents on the pellet issue.
Ed