The key to ANY pellets is the % of hardwood to flavor wood.
Me? I don't like any of the Alder based pellets, such as Trager. I don't think it does well with BTU's and to me just doesn't add flavor.
Try to stick it one that has a hardwood based (such as FE) and then find out the % if you can. I believe the ones CS is selling now are 66% oak and 34% hickory (don't quote me, but that's what I seem to remember as they're new pellets)