EAAs

You want to increase muscle mass
You want to see an improvement in recovery
You want to decrease soreness

EAAs

9 essential amino acids including the 3 bcaas (leucine, isoleucine, valine) and 6 other (histidine, lysine, methionine, phenylalanine, threonine, tryptophan)
Can trigger protein synthesis which is required in order to build muscle tissue
Is useful if you want to gain some muscle or prevent muscle loss