What does the weight mean? Does it mean the current weight of the puppy or when it grows up? I'm currently feeding my Doberman puppy TOTW because it's a good kibble and it is easy on the pocket. Some columns on the guideline also have blanks. See for yourself: http://www.tasteofthewildpetfood.com/products/dogs/dry_food/sierra_mountain_canine_formula/

Please help! I'm really confused!

Both formulas are great.

I would be concerned with high protein contents for a puppy.

I have never gone by the "guidelines" on the bags as they are vague, and incorrect.

Current weight. The amount will be increased as he pup grows.
It is the amount per day. Divide the amount stated by the number of meals per day.
The blanks are because there are no pups of that weight.
Neither is necessarily better. Rotating between formulas gives your dog different protein sources and prevents food boredom.
Compare prices where you purchase the food.
Generally fish and red meat based food is higher priced than chicken.

In the guidelines it is referring to the current weight of the animal. The reason their spaces is that no dog that age would be that size.

The High prairie canine formula is based in bison and the sierra formula is based on lamb. I actually feed the Pacific stream formula and rotate that with an occasional bag of sierra formula to vary the protein sources for my dogs. I use these two and not the high prairie or wetlands formulas as my dogs have issues with chicken. Other then that the high prairie is slightly higher in its fat and protein contents which if your dog uses the extra protein and fat is no big deal. So it boils down to personal preference, all of them are great foods. Generally the prices are pretty similar.