Healthy and gave good looks. It's not all about what YOU want, it's also important to be generous of the child.
If he's smart is in bad health, that could end his life soon, cause him to develop a life changing disease and probably have low self esteem. Mind over matter you guys, don't jump to the first conclusion.
If he's only smart but not good looking, he'll (PROBABLY) have an awkward social life, find it hard to make friends and feel comfortable around others... then like I said before, have low self esteem.
If he's only good looking but nothing else, he'll probably end up a failure.
And I don't know how far good health can get you as far as a good job, grades, meeting people and college goes.
So if he's good looking and healthy, he can easily triumph over school with hard work, perseverance and endurance. And I really don't mean or want to come off as stuck up or narcissistic, but I have great health and... I'll just say not ugly. But even though I tend towards myself, people still warm up to me. But school is an incredibly hard struggle for me, it's the hardest thing in the world. I take too long to complete assignments, and I'm always asking for help. I have to study day in and out to keep my grades up, but I wouldn't have it any other way.
But as far as who I'd marry, somebody with the traits above; good looks and health. Smarts can always be achieved. But if I HAD to choose one, it would be looks.