Homophilia (attraction to memners of one's own gender) may not be a choice; homosexuality (sexual relations with members of one's own gender) is. That said, even homosexuals culpability for their own sins may be somewhat lessened (but by no means eliminated!) by compulsive or addictive disorders.
Actually I tend to think the benefits of being heterosexual occur here on earth. I don't think God really cares that much about our sex lives, but I do think that a secure and stable marriage and children are two of lifes greatest joys and if you are homosexual chances are you won't have either. It's also a very unhealthy lifestyle both emotionally and physically. Men and women are naturally complimentary to each other. Men and men or women and women are not.