ive been training for 5 years, trained with serious meat heads, trained with athletes etc

whey protein is whey protein. other shakes taste better/mix better/have additional nutrients, but whey protein is whey protein.

i challenge anyone to prove different. comparing it to 'good' and 'bad' calories is like comparing a block of cheese to a condom.

i spent a year on metrex supreme whey protein (quite expensive) and over a year on cheaper brands such as nutri-sport and also buying raw whey protein from a supplier, my strength/weight increases on eithe rproducts were no different, with steady progress in both departments.