It really depends on the scenario.
If you're looking to hire a new sales person at your BMW dealership, and you have a choice between a hot, young coed with zero car sales experience versus a slightly less attractive woman with lots of experience, you're probably going to choose the coed. Why? Because the buyers of higher-end, performance-oriented BMWs are typically older alpha males desperately trying to retain their youth, and a young, attractive, flirty female can part them from their money better than anyone.
On the other hand, if you're trying to fill a position for a NASA engineer, you're going to pick the smartest, most skilled applicant, and looks will have zero impact on the decision.
Similarly, when you need a doctor, you couldn't care less what they look like (unless you're insane or a racist). If someone has a choice between a hot doctor who graduated from a state college with a 3.0 GPA, versus an ugly doctor who graduated from an Ivy League school with a 4.0 GPA, what sane person would choose the first doctor? "Oooo... if I choose the hot, but average-skilled doctor, there's a chance I might get some sexing!" I mean, come on. lol. :

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