Ignoring her troubled examples (the demands for what a "personality" is seems to change radically at a whim, from Leon (invulnerable quipper) to a BioWare character (vulnerable husbando/waifu bait) to Link (facial expressions, sometimes), the real fact of the matter is that this girl is being a weirdo geek and expects that to be universal. It's somewhat passable in some situations to say a videogame girl is sexy (because they are representations of something sexy), but to make this about the connection you have with the character and about dating potential and shit is pretty fucking weird. And for men, utterly emasculating and uncool. Nevermind any sort of jealously people are getting mad about being pointed out, what's a man have to gain by revealing he wants to wife a videogame character, to anyone, even himself? Nothing, which is why this only comes out amongst strangers on the internet (unless they are socially fucked up, which apparently includes some of her friends).
As for why there are more men for choices (however you define personality), it's because there are more male characters in central roles. With that pointed out, the rest becomes a bunch of pointless blathering dancing around the main point, probably in order to look like they had something original to say.