I do not really have all the experience with pellets that you guys and gals do, but with one recommendation from 'Toasty, I shot the Crosman HP Pellets and found them to be decent quality, and priced low enough for my retirement income level.
Now, because I am new I simply am not qualified to give specific advice. BUT....I have 54 years in archery, and buddy let me tell you there ARE parallels. In archery a similar condition exists with broadheads. Folks discuss weight, concentricity, flight characteristics, and terminal performance. Gee....nothing at all like pellets(LOL). If you read the posts on archery sites you can see a common few answers from old timers: 'Tune your broadheads and arrows and go hunt.' 'If it won't hold an edge, toss it and try another brand.' 'XYZ brand has been around for a jeeelion years snd it still works ' etc.,.
The point is that the business end is what it is. Some folks looove to try new stuff(and they should...that is how we learn). Others find a winning combo that suits them, and they stop right there. Some folks like to argue...not good. Others like a lively and healthy debate...very good! I used to obsess about everything...took the joy out of archery. Be picky within reason, you will have good results AND save your joy and sanity. I am VERY thankful to all of you, as I am learning a ton, but the principles are very very similar.