Presumably most of them, as it's quicker to go that way!
It certainly is quicker thay way!
I think personally that HS services via Medway are completely pointless. I am sure they are great for commuters wanting to go to North London. However for passengers that don't and who want South London, they are forced to add extra strain onto the Northern line and Thameslink unless they change at Gravesend, Rochester for earlier for Victoria and Charing Cross services. Question: For people who do this, how would seperate reservations be managed for them?
In addition, with the trains spending such little time on HS1 it makes me wonder why people bother to pay the premium Southeastern demand for using the high speed trains, when they gain such little value for time and money.
I feel similarly about high speed services via Ashford although to a lesser extent as they travel for a much more substanial amount of time on HS1 in comparision (although not between Folkestone and Ashford surprisingly, but that is for another thread!). There is no question in my mind that people would not prefer to use fast mainline services (between Ashford and Tonbridge especially) to Charing Cross and Victoria if were ever brought back.
What do other people think?