I feel like it's tough to really know for a few reasons.
#1 - So many good ones these days
#2 - 99% of us will only buy one and keep it for years. How many people keep multiple pellet poopers in their arsenal?
So we end up with people buying various pellet smokers for various reasons, and in threads we just say "I like my XYZ model".
It's not like, for example, oh, take pocket knives. You want to know best pocket knife in a price range? There are plenty of people with collections, and they own/live with every top shelf knife in a given price range, and they can explain the differences and why one might be better than others.
Not so with pellet smokers, nobody is collecting the darn things
Just my opinion, I'm not saying their top 10 list is bad, just that for this kind of product, it seems tough to get opinions from people who have lived with multiple units and have a decent amount of experience with those multiple units.
I certainly don't!