A recent study showed that Whey was better than isolated aminos. If you don't need individual amins, stick with whey. SOrry, I don't have the link. I think it was something Suppversity posted in Facebook.
Edit: Here it is.
Another study to confirm: Whey protein is superior to free form amino acids - even if the AA profile is identical
In this latest iteration of the never-ending "whey" > "AA" story (by the way, you are aware that the only reason it is "never-ending" is that the supp companies make a greater revenue on useless amino acid products compared to whey), researchers from the University of Tokyo were able to confirm that not just the net-protein synthesis, but also the expression of signalling proteins that control the former differ with whey vs. an identical amino acid composition:
"These results suggest that ingestion of WPH, compared with ingestion of a mixture of amino acids with an identical amino acid composition, induces greater changes in the post-exercise gene expression profile via activation of the proteins ERK1/2 and HIF-1a"
Reference: Kanda, Atsushi, et al. "Post-exercise impact of ingested whey protein hydrolysate on gene expression profiles in rat skeletal muscle: activation of extracellular signal-regulated kinase 1/2 and hypoxia-inducible factor-1α." The British journal of nutrition (2014): 1-12.