Received a 5lb tub of Optimum Nutrition's whey protein. Excellent and very high quality protein. Very easy to mix. Tastes amazingly delicious. IMO, it tastes better than the Triple Threat.
Definately really good protein and at a good cost too. Here in Fort Lauderdale FL a 5 lb container is $25. Not bad, thats like $5 a pound. The regular strawberry is good too. Stay away from the natural strawberry though because it tastes bad.
I will try optimum next, but I will say Big Whey tastes horrible. I just switched to EAS simple protein and it tastes way better and blends better. Big whey is to thick/lumpy, where as eas is more grainy/powdery.