Waxworms: high in fat. Feed sparingly. Treat food
Mealworms: lots of chitin, hard to digest....feed freshly molted ones( white ones ) if you want to feed mealies.
Superworms: less chitin, nutritionally comparable to crickets. A good worm. Can be used as a staple instead of crickets.
This is the order of nutritional value for common beardie yums.(the ones I've researched and used)
starting off with the best
silkworms and butterworms
superworms
crickets
mealies
wax.
beardies love variety

Silkies and butters, because they are so high in protein and calcium are not the best for a staple ( as in every day feeding for young dragons), but are fine for the older dragons who get bugs 2-3 times a week.
For the younger ones, stick with the majority of crix or supers(depending on the size of your dragon) and add in the butters or silks throughout the week but not every feed.
HTH.