Hey guys, I've tried searching about Chicken Breasts vs other parts but I couldn't find anything concrete. Found mostly related to Weight Loss, that they say Chicken Breasts is better because of low fat content.

So for me, I'm ectomorph. What part of the chicken should I consume that has the highest protein and yet it is cheapest?

Also, regarding milk powder, which has the highest protein in 100g powder? I'm currently drinking Dutch Lady Full Cream Milk powder : has 25g of Protein in 100g of powder.