I don't believe that ANY one food is the best. I have beautiful healthy pups who eat Hill's Science Diet Ideal Balance. Each person must make a decision for his/her own pups and what works for them.
I am not going to get into the pros and cons of raw food. I am not a fan of it, so best I not comment.
The only thing I care to add to this thread is the following website run by a veterinary nutritionist who I believe is a true expert in the field:
www.petdiets.com
There are people on this forum who feed raw and I am quite sure they will be around to share their experiences.