Ahhhh! The pellet wars!
I disagree that any pellet fed exclusively is "best".....fresh is always better ---yes it is often more difficult than placing hard processed pellets in a bowl---but it is well worth it. Do I feed pellets? YES! I feed Roudybush Rice diet, in addition to a wide range of fresh fruits, vegetables, nuts, legumes etc.
The pellet or no pellet discussions have been going on for years and I imagine will continue.......you have to do your own research, read everything---try
www.holisticbirds.com as well as various other sites on the web.
Once you've gathered your information, also do research into all of those "un-pronounceable" words on the back of the bag of pellets.....the artificial colors, flavors, preservatives. Check out the effects of soy, sugar etc on parrots....
Then make your own decision based on what you feel is right for you, your birds and your life style.