I think that would depend largely on the protein drink you are using. I'm curious why you would prefer to get your protein in liquid form instead of by eating protein? Another thing to consider is that often protein drinks are often lacking in essential fatty acids, so you would need to supplement with those if you were getting your protein strictly from a liquid source.
Personally, I get a great deal more enjoyment from eating a nice piece of roasted chicken or a good grilled steak than I would from drinking a protein shake.