Hi! I've fallen in love with EAS' Myoplex Ready-to-Drink shakes in chocolate fudge. They come in regular and low-carb. There are also two sizes depending on your desired protein intake and price range. The smaller size comes in 4-packs and contains 20 grams of protein and the larger ones have 30 grams of protein. Also, they contain other nutrients, are 99% fat free, and don't contain aspartame.
I've tried various protein powders and can't find one that is truly palatable and nicely textured. Most of them end up being lumpy or overly thick in texture, not to mention, the taste is sometimes just plain disgusting. The best part about Myoplex, though, is that it's ready to drink--no blending, no shaking, no need for milk or other liquid.
You can buy Myoplex at GNC. There are other flavors too but I haven't tried them. Good luck in your search.