I believe there is an absolute maximum of £500 per week, however many children in a family and whatever the cost of housing. This sort of figure is often quoted as if every family receives it - most get a good deal less than that. In my area, the average house costs £500,000, the average flat £350,000 and the average rent is £1,300 per month.
I don't believe that unemployment/disability benefits should be brought down - I believe that the absolutely disgusting wages that some people are earning - even when working for companies that are making huge profits - should be lifted up.
It had been expected that George Osborne would reform pension tax relief - as someone else pointed out, this disproportionately benefits the wealthiest people. Most political commentators agree that as this would have affected Conservative supporters and donors it was abandoned.
I think it is a cowardly, politically and ideologically driven choice to hit welfare but, if some people feel that it is a fair and reasonable target, then I don't see why pensioners should be ring-fenced. Recent figures have shown that, on average, they are doing much better than younger people. Again, the view is that this wasn't pursued because older people are the Conservatives' core voters.