Suppose the question was more real... it related to how much of their "designer baby budget" you had to spend on your first baby before they were born (in an alt universe where that's possible).
Or you can imagine the question was for your parents.
The situation is that Your looks or brains are random genes from the parents, unless someone spends the budget to tweak the choices. In this scenario, it's socially normal and everyone does it, spends what they can. The genes for brains or looks don't interfer with each other but they are different ones to target, they get targetted in different purchase options (packages).
So how do you want your parents to spend their money on creating you, given the money will be spent so leaving it all to chance is not an option. And Ditto for your kids.
My answer in all cases is 80% brains & 20% looks. My logic being that the 20% can be used to especially prevent any really ugly features, rather than ensuring beauty. The 80% can also prevent neurological disabilities as well as provide high intelligence.
Or in OP's scenario, maybe the 20% just scrapes me into the "tolerable" category while the 80% brains puts me firmly in the useful opportunities life can be interesting category.