It appears that ideally it's a married couple and any children they may have although technically the Church does recognize that in many cases the mom or dad or children may be missing.
By 'married' are you talking about a temple marriage only or including any legal ceremony?
The ideal is temple, but 'nontemple' are considered families as well (for time only).
Unlike his later followers, Jesus (as portrayed in the Gospels) is, for the most part, not concerned with the afterlife.
Which if true, has no bearing on whether or not he is antiFamily.
I guess one could read Jesus's denial of marriage in heaven as a rejection of his contemporary understanding of marriage as patriarchal ownership--ie., they were asking him which brother the woman would belong to, and his response is that in the resurrection such ownership does not exist.
I think the only logical way to read it is along these lines:
In the Apocrypha. . . we read of a young woman, Sarah, who had been married to seven husbands (all brothers), each of whom was killed on the wedding night by a demon. But in the story (Tobit 6:10-8:9,) Sara ultimately marries an eighth husband, Tobias, son of Tobit, who, following instructions from the archangel Raphael, manages to chase the demon away and is therefore not slain. Of special interest is the fact that the archangel (who, according to Tobit 3:17, had been sent to arrange the marriage) tells the young man that his wife had been appointed to him "from the beginning" (Tobit 6:17.) This implies that she had not been sealed to any of her earlier husbands, which would explain why none of them would claim her in the resurrection, as Jesus explained. But if she were sealed to Tobias, the situation changes. Assuming that the Sadducees (whose real issue was one of resurrection, not of eternal marriage) were alluding to this story but left off part of it, this would explain why Jesus told them, "Ye do err, not knowing the scriptures, nor the power of God"
John Tvedtnes, "A Much-Needed Book That Needs Much," review of One Lord, One Faith, by Michael T. Griffith, FARMS Review of Books 9 (1997): 41
And that dovetails with Origen who reports in
De Principiis that earlier christians, considered orthodox, believed in marriage after the resurrection.
Paul, on the other hand, is pretty clear that he thinks that the end is immanent and that marriage is a hindrance to the work.
No he doesn't. Only his type of work or a specific case. Other than that, he preaches the salvic necessity of marriage (1 Corinthians 11:11).
As I noted in the other thread, in Howard W. Hunter's apostolic charge (given by McKay), he was told that his calling should come before anything else in his life--including wife and family. This is essentially the same idea expressed by Jesus ('abandon your family') and Paul.
Such is taught to all LDS, that God comes before family, especially to those who are sealed in the temple. This isn't a rejection of marriage, but a rejection of relationships that come before God hence the necessity of being unified in marriage simultaneously with one's spouse and with God.