Sure, whey protein is the best protein you can get ? Sorry, no, the best protein you will get will be from vegetables, seeds and nuts. The fact of the matter is, not many of us eat as many vegetables, seeds or nuts as we should, and they are not fresh, the way that nature intended! So include alot of these in the diet.
Don't feel you have to have dead animal or eggs or milk, etc, no! These bring along major health problems like cancer, heart attack, respiratory problems, etc...
If you are worried, include lots of soy products and textured vege products, they are tasty and have loads of protein.