I can say this... that for the last 6 years I have tried just about every protein powder, shake, nugget, cookie (yes.. they exist) and any other form of protein that's available.
Here' what I like:
Powders
Nectar by Syntrax - 23g protein per scoop & 100 calories. Can be blended with water (if you get the fruit flavored ones) or milk for the traditional choco/vanilla
Inspire - 30g protein per scoop and 123 calories. Again with water or milk depending on flavor. I prefer the pomegranate razz sangria flavor, but i hear the peanut butter cookie flavor is da bomb too
Body Fortress Super Advantage Whey - 52g protein per 2 scoops, 210 calories, 3g sugar, 4g total fat. Flavor - Cookies n Cream. This is a beaut! and you can get this at Walmart on the cheap
PURE - (unflavored) - 12g protein per scoop & 100 calories. This one's nice because you can add it to anything from cereal to soup
RTDs
BELIEVE Protein Drink - 30g protein per bottle & 120 calories - also high in B vitamins (esp B12) - comes in a few good flavors
EAS AdvantEdge - 17g protein per serving & 110 calories - i prefer Cafe' Caramel
Foods
Supreme Protein Bars - 15g per bar - rocky road is delish - 200 cal, 9g fat, total carb 17g
These are some of the supplements I have used and will continue to use due to being a bariatric patient. My body has a higher than normal malabsorption rate so my protein intake has to be supp'd and at the same time limit caloric and sugar intake. A complicated dance indeed.
So... if you're looking for something different... here ya go.. and as an added bonus... they are really good!!