People, people, I meant iconic in terms of current cultural relevance within gaming, as in simply to note that Horizon is outselling the most successful Tomb Raider games. I mean personally, there are definitely game heroines (and antagonists for that matter) I connect with more deeply than either Aloy or Lara myself, ranging from Ellie from The Last of Us to Celeste's Madeline and others, so I also didn't mean to imply that Aloy is the objectively greatest female game character or anything like that. I mean my own tastes aren't shaped by sales.
I think nobody here really argued about who is the "better" heroine, or better games or whatever. The argument more is different. You see, books, movies and games are at the same time a commercial product and a work of culture. If HZD sold 20 million copies, it is undeniably a successful commercial product, I think nobody would say otherwise. If that means it has a big cultural impact though is too early to clearly say. Tomb Raider/Lara Croft had the time to access the situation, and Tomb Raider stayed relevant over more than two decades with influences on other works and releases in more media than one (movies besides the games). That shows that Lara Croft is a cultural icon. It is just too early to say the same about Aloy/Horizon. It just gets a second game soon and as far as I know has no other media reception. If that will have cultural impact we can talk about in ten years.