Honestly, I don't know if there is one. I have been buying Pampers sensitive skin because me and hubby have bad skin so we are just getting prepared. Honestly, you will go through so many and they are pretty much alike.
I've just bought Johnsons but only because they are BOGOF at Boots and I'd gone in for my free changing bag with my nappies. Know I'm starting a bit early!
Did take me a while to choose and I was totally fished in by the "as gentle to eyes and skin as water" strapline on the packaging! And I worked in marketing!
They honestly all seem as good as each other tbh... I've got Tesco ones - my mum uses them with my baby brother, they're apparently no different from big brand ones, but they cost about half as much for twice as many!
I got a big box of johnsons cause asda had a deal on. But other than that I think it will be Simple. Apart from whats needed theres next to no additives x