Honestly, I think the best thing to do is what you are doing now. Get a wide range of opinions, then filter down to what you personally feel is important. Reassess that against your experiences and solid data. As you said, five different people will give you five (or sometimes ten) different answers. Important things to keep in mind are what you want to achieve with any animal you are breeding. For example, the way someone raises a purpose oriented Tibetan mastiff out on the Tibetan steppes is going to be a world of difference between how the US show Tibs are raised. Different things are desired too, with a more aggressive animal needed in Tibet, and a more docile animal desired by US breeders. What visual standards at bred for and how important they are to these two groups also differs. It's not just breeders who disagree or do things differently, it is buyers too. Some want to buy from breeders who look to improve the breed, and others look to those who want to preserve it. Some want dogs who title in working trials and see that as an unbiased review of the dog, others want dogs from working environments that they can see work day in and day out. Some want a breed that follows a strict standard, and others prefer breeds that are extremely diverse. Some want a recognized breed, and others do not. Etc, etc. I know as a buyer, I appreciate having a wide type of breeders and sources (ie. shelters, rehomed, etc) to choose from. No one way of breeding is something that covers the different types of animals I have owned, or the different purposes I have needed or wanted them for. Others would be distraught being told to buy as I do, just as I would be miserable doing it their way. What one person feels is vital to the well being of an animal is often very different from what another feels (ie. ever seen a debate over inside versus outside dogs?), and can also differ with the individual animal (ie. some dogs love Taste of the Wild food and do well on it...my dog puked on it and stopped eating it). Keep doing what you are doing which is keeping a level head and an open ear.
Best of luck with the litter!