I never found what's described as unconventional unattractive. These models like Lindsey Wixson are for sure not drop dead gorgeous to me but not ugly like many people say. The kind of looks I absolutely cannot stand are the ones called classic beauties often but in reality they are not classic at all.
Natalia Vodianova, Natasha Poly, Jessica Stam, Doutzen Kroes, Lily Donaldson, Karlie Kloss. They don't have good lips in any manner or a good face shape. I like Jessica and Lily in general because I find them to be good models especially Lily. Natalia and Natasha also have completely unideal bodies.
I think Gemma Ward is very cute with pretty features but I don't get the appeal of her as a model. Maybe a more versatile girl would have made her look work but she always looked the same, the kind of look she got labelled as is suitable for kids magazines, the editorials she did. Vlada also started out with this very young look but she showed range in her work.