Regarding: "But "Pastor" is more, well, pastoral. Each time it's used to address a minister, it reminds him or her of a key assigned task. "
- The use of 'pastor' is preferred as it is gender neutral and emphasizes the office rather than purported attributes of the presbyter, or lay person holding the office.
- 'Brother' or 'Sister' are better honorifics because they arise out of baptism, relate us to Jesus, and are not suppressed or obviatd by ordination to any of the clerical states. 
- Disabusing ordinands of the use of Father as title would help reduce the tendency to clericalism.
- The word 'father' and for that matter, 'mother',  is reserved for those who have attained an ontic reality that transform him into a co-creator with God; the co-creation being initiated by raising a child, usually one that the person called 'father' has sired.