Its a nice idea, as long as they dont photoshop normal girls into supermodel look but use over average healty women. Slim, atletic and curvy, variations are great.
I love to see a variaty of betuys. Short and skinny, tall and muscular, classic timeglass...
No need for plain girls just because you pick different looks.

If you look like a stereotypical nerd you are going to have problem getting the hot chicks. The hot chicks are hot because they take care of their looks and go to the gym. They tend to want guys that do the same.
Maybe going for a chick with your kind of habits and interests would have a better chance of success ...
But ofc they are not as hot...