Just to clarify, we should distinguish social biases that give unearned privileges from having traits that inherently and directly lead to better outcomes or an easier path (like intelligence, or lacking a physical disability)
IOW, confine "privilege" to the notion that violates a basic sense of merit-based fairness.
That would largely exclude rousseau's suggestion of "intelligence", which directly produces merit-based benefits. There might be some extra perks for being intelligent but I think there are also cultural biases against the intelligent, especially in cultures with strong anti-intellectual tendencies, like the US.
Attractiveness and height likely interact with gender. IOW, attractiveness benefits both genders, but probably women moreso (which also means that being unattractive is worse for females). Weight is similar to but not identical to attractiveness (one can be skinny and ugly or heavy yet otherwise seen as attractive). And again, this factor probably has more impact on women.
In contrast, being short is likely worse for males.
While a few of these impacts might be direct and merited (such as getting more romantic suitors or more modeling offers), there many effects due to indirect cultural bias where more attractive or taller people are just given benefits for which those traits have no objective relevance.
