NWRSG,
I agree with your analysis, except that as I've said above (or back in December), I think Gatwick is much more politically acceptable, and Stansted the outsider. But yes, another runway at any existing airport is always going to look like a more acceptable deal, cf BI.
But I expect that your true motivation in hurling insults, was to divert attention away from your failed arguments against the Siver-Boris Island. Silver-Boris Island will be built. Not next year perhaps, but in the near future.
Silver, as John Major used to say endlessly in PMQs (if you know what they are) - 'I refer you to the answer I gave moments ago' - or in this case a month or two ago.
The case for BI is far from watertight, it is full of very large holes. This government is strapped for cash - so much so that it is even considering selling the family jewels! Can you imagine Obama selling the White House?
So, I ask you again. If the case of BI is so good - what rate would you set the average PSC at?