Choose Gillette if the supplied catalogue coverage matches what you need: compatible Mach3 refills, sensitive shave gels, Satin Care formats, Venus multipacks or King C. beard care. It may also suit shoppers who want to compare several shaving accessories from one brand in a single category.
Compare Wilkinson Sword closely if you are open to a different razor system, already own a compatible Wilkinson Sword handle, or find a live blade or razor multipack that compares well on pack size and availability. For gels and foams, treat brand as secondary to format, size and how well the product fits your shaving habits.
Whichever brand you lean towards, use Shaving Accessories to compare products and offers side by side. For closely related needs, it is also worth checking Razor Blades, Razors, Shaving Brushes, Shaving Foams & Shaving Creams, Shaving Soaps, After Shaves & Alums and Shaver Cleaners so you do not miss a better-matched accessory.