In most cases they do not have halos, which are symbolic of divinity. A god like quality. I take angels to be perfect humans if we were perfect. Since they are imortial, health and old age would not be an issue. They have no sexual desires, since it is not necessary for reproduction.
Sexual desires cause humans a host of problems.
Since they are perfectly happy all the time, there is no need for alcohol or drugs. Angels have perfect love. They don't want anything from you in return.