In a Greek yogurt taste test done by Epicurious.com, the best overall winner was Fage Total Classic Greek Yogurt. Testers chose Fage as their favorite Green yogurt brand due to its texture and sweet taste. The only con shown from the test was that it's more expensive than other brands.
Coming in a close second, Trader Joe's Greek Style Plain yogurt is less expensive and was favored by testers for the natural taste and the texture being not as dense as other tested brand. The downside to this yogurt is that this particular brand may not be rich enough when compared to others.