I wasn't being serious ^^
Anyways when it comes to Hikki, besides the fact that her songs are poppy and that the tunes combined with catchy English phrases can very easily get stuck in your head, I think that it's her simplicity and playfulness that people like about her. While Ayu mostly sings about stuff like freedom, different sorts of love, faith, inner strength and her feelings as far as I noticed Utada sings about little things in life, like watching TV, reading shounen manga etc. (of course she as well has a number of songs I'd say are very poetic like TAKE5), she seems to be more easy going and "relaxed". The fact that people barely knew who she was when Automatic was released made the hype back then I guess and the fact that she was Americanized helped her a lot at that moment, cuz she had a different story to her ^^ At least that's what I think