You can usually cut out the middle man by getting the Protein and BCAA's together. I like Optimum Whey. (Vanilla Ice Cream and Double Chocolate)
I have NEVER had good luck with precursors Adonis. I have also read that a person cannot process free-form Glutamine Peptide, but have had wonderful experiences while using it personally. I would stay away from liquid creatine, it didn't do shit for me. Good old powder was the best.