Looks are important, but it certainly takes a back seat to personality, having a solid moral compass, coming from a stable home, family background, being properly home trained, ambition, intelligence strong work ethic, possessing a solid spiritual foundation, being emotionally healthy, etc..
But, I do want to stress that being physically attracted to someone is very important! People need that spark, especially when meeting someone otherwise they will mentally check out on someone whether intentionally or not.