Brains definitely. Brains could get you a brilliant job. And with a brilliant job comes great money. And if you desire beauty aswell, you can afford surgery, lol. So you could start off with brains, and gain beauty, but if you start off with beauty, you can't really buy brains.
Brains of course! Beauty is very ephemerous so, stay in school get an education and cultivate your knowledge because it's were the power resides. Oh! By the way, youth will be gone in a blink of an eye even, if you don't believe that right now. Good luck!
I think that it is better to have brains then beauty because if you have brains then not so many people will be able to boss you around you could also get a greater and easier education if you got the brains. It never hurts to also have to beauty though. Its like killing two birds with one stone!
Personally, I would like both. But if I had to choose, it would have to be brains. Looks fade with age. A person's personality is what makes that person truly attractive to you. If they are like an empty shell with a nice body and nice features, there's no interests and nothing to talk about, and eventually you will loose attractiveness to the physical aspect of that person. So what are you left with? Nothing, and it won't last. Smartness is the attraction, looks is a bonus.
Brains because it gives you more career options , so if you start with brains you can gain beauty, but if you start off with beauty you can't really buy brains. Knowledge is power.
I hope you are pretty, because your question is missing an important word, which makes you appear to not have a lot of brains. I would like to HAVE both if that's what you mean by, would I rather beauty or brains.