Argh this is so hard I love Banana Chocolate and Vanilla but it all depends on my mood 1 week I will love 1 more than the other then the next week it's different! lol this week I'm all about the Chocolate
I prefer the powder my blender makes them absolutely gorgeous, I think the pre-made Strawberry shake is nice, but I haven't tried the powdered strawberry so I can't compare
I tried to heat up the chocolate one and ended up pouring it away cos I though it tasted horrible. Maybe a pre-made one heated up wouldn't be so bad, I don't know.