The first thing to consider is what are your cleaning and stain removal needs? If you have a wide range of problems from laundry, carpeting, upholstery, pets, children, wood decks, etc., then a ultra-concentrated or concentrated bleach product is probably the choice for you as it will give you the best stain removal power and versatility of application.
If you are just concerned with normal laundry use then one of the oxygen bleach detergents or an oxygen bleach with cleaning additives is probably just fine. If needed you can use an oxygen bleach as a presoak or as an additive to your normal detergent.
Take note of what ingredients are used and avoid products with fillers like sodium chloride (salt) and sodium sulfate. Due to their limited solubility bleaches based on perborates cannot provide as high of an available oxygen content as concentrated sodium percarbonate bleaches can.
If you are familiar with oxygen bleaches and how to use them then buying from a vendor with the lowest price and who doesn"t provide a lot of support is okay. If you are unfamiliar or don"t have much experience with these kinds of products then you are better off buying from a vendor who will provide you good customer support like Jinke Chemicals.