Big car park space, big motorway connection, largest airport outside of London, 19 domestic flights per day to heathrow to be replaced, local transport interchange, need any more reasons for stopping it at manc airport?
Also, from Manchester the likes of some major legacy and international airlines have flights...
American Airlines: Daily to JFK and O'Hare
Delta Airlines: Daily to JFK and Atlanta
Continental Airlines: Twice Daily to Newark
Pakistan International Airlines: 10 weekly to Islamabad and Lahore (this is more than Heathrow)
Emirates: Twice daily to Dubai
Virgin Atlantic: 10 weekly to Orlando
Ethiad Airlines: 6 weekly to Abu Dhabi
Quatar Airways: Daily to Doha
US Airways: Daily to Philadelphia with charters to Charlotte
Singapore Airlines: Daily to Singapore
Not to mention the reigonal arm on every airline in europe.
And if a link to Heathrow is gained, MAN could end up being used as a 'domestic hub' for Heathrow, the same for Birmingham International, becoming an annexe of Heathrow if it had direct, airside codeshared trains between BHX and LHR, this would be much easyer to implement at MAN due to the terminal layout and space available for the HS2 station as indicated on the map, a moving walkway, airside, from T1 via T2 could be provided, in conjunction with the expansion of T2 at Manchester to include 4 VLA stands it would be very useful indeed.
On numerous occations I have known of passengers from London travel to Manchester with the current transport situation because either flights are cheaper, or more convenient than LHR or LGW. And with space at both of these at a premium, and a 1hr direct link to Euston or LHR on the cards, with intergrated ticketing though airline alliances, the prospect of using Manchester as an international gateway in place of LHR is becoming more and more favourable, especially with all the space available for expansion at Manchester, and the space to add 'premier intergtated terminals' where theoretically you could travel without seeing one standard class passenger in business or 1st class.
Need I post any more reasons for having a station intergrated fully into Manchester Airport?
PS: The northern hub report only mentions the impact of the two options developed on future routing of HS2, it does nothing to sudgest where it will be routed at all.