Wildfire, I think it's all about personal taste - even my own tastes change. Last time I did Slimfast I drank mostly the French Vanilla. This time it's the Milk Chocolate one. I tried the capaccino one and didn't care for it - but I added vanialla protein powder to it and it was alright. For awhile, since I haven't been losing using the SF Optima this time around, I did try it with adding protein powder. Nothing changed but I was adding the powder for both breakfast and lunch. Maybe I'll try it with adding it to just breakfast.
Good luck! Rachelle