I've had great results with ribs and cornbread. But in all seriousness, as far as taste is concerned I really like Surge Recovery and Metabolic Drive. They seem to have more substance in the flavor than most other brands of protein that I've tried which taste very watered down and light. The exception being Muscle Milk, which tastes pretty good except for the after taste of diet sugar.
With regards to results, I'm not sure if Biotest products would make that much of a difference over other brands as long as you are training hard and eating the right food. I know a lot of guys who have awesome results without using any supplements.
That being said, I think taste has a lot to do with my choice in protein, and Biotest has so far proven to be the best in my opinion.
I do highly recommend some of their other supplements. I like Alpha Male, the BCAA tabs, Superfood, and Flameout. I rarely use protein anymore because I eat so much food, but those are supplements that I like to take on a regular basis (with the exception of Alpha Male, which I cycle every couple of months).