>>1427521>>1427320Rushia is probably the cutest 30+ year old woman I've ever seen.
Mel is quite cute, especially if you like thin girls. It's not at all surprising that her manager was obsessed with her if you know what she looks like. She could easily cosplay as her own character if she dyed her hair blonde and got some pads.
Miko is really cute, arguably even cuter than her character. If we're going only by appearance, she could very easily be an actual idol rather than a virtual one. I assume the reason she presumably never went that route is either because of her various health problems or because of how she's a big introvert.
If we expand this assessment to just one of general attractiveness vs. just cuteness, then:
Noel infamously has larger breasts than her character does, and they're 100% real. She could make an absolutely insane amount of money if she was willing to do porn, but she's not going to do that because she has worked smart and made herself rich without having to sell herself to the yakuza. Some people think she has a butterface, but I disagree.
Marine is pretty attractive. Although she auditioned for her role, she's like Noel in that her actual proportions are not that far removed from the character she plays, if you can believe it. Back when she was on NND, the guy who's the Japanese equivalent of Pewdiepie, per his own statements, apparently asked her on multiple occasions to go on a date with him, and she turned him down.
Coco is definitely attractive. She has tattoos and a tongue piercing though, which are pretty big minuses in my book.
Towa is very conventionally attractive.
Nene was a real idol before being a holo, and she has the great looks you would expect of someone with such a background. She's another person who could readily cosplay her own character as long as she had access to the appropriate costume pieces.
This list is not exhaustive but just some of the examples that came to mind. I personally was really surprised to learn how good a bunch of the Holos really are in terms of looks.