I have really been watching this since I am taking my two kids to Vienna at Thanksgiving.
Also I am working on a Plat Challenge so I am watching the fares, close.
BestFares.com seems to have some good deals, but nothing on AA.
BA - has a deal with family accounts. SO in my case I can take my 2 kids but get the 3x credit... myself and their two fares -- they all go in my name. SO instead of 11k miles, it's 33k.
The problem with me is that I don't know when I can use BA miles. Maybe someone else can.



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TANSTASFL - but if you work it right, FF miles comes pretty close.