i would say it would be pretty hard to base anything so subjective like who's the best at anything off of anything such as facts instead of opinions..
i don't know where one would get facts on which breeder is the best, but rather only have opinions based mostly off of personal experience, others experiences, etc...
i could tell you what breeders i prefer, and why i like them, but then someone else will surely come in right behind me and tell me how my choices suck and how this and that breeder should really be in the top ten..
just my $.02 worth..