Whey protein is actually quite good for you, if you aren’t allergic. However we don’t often need as much protein as we consume.
If you want a vegan protein powder you could try quinoa that’s another good source.
Only a percentage of people can effectively digest soy.
I just asked my personal trainer this very question and he recommended Vega One vegan protein powder. No whey, which he said is better. http://myvega.com/
I’m actually picking some up after work tonight. Weird coincidence.
I wanted to leave you with a good option but can’t link at this time. www.sunburstsuperfoods.com search for raw organic quinoa powder. An excellent product and very versatile.