Goodwood or Biggin which Bof B flypast?

Due to distance and cost I can only attend one event in England this year and because this is a special Bof B year several events are being mentioned. I see that Goodwood is having a large( estimated 35 aircraft ) gathering in September and Biggin will have a formation patrol the South east. Can anyone suggest which will be best for public access? Or should I stick to a Duxford event? My aim is to see what is likely to be the largest formation with an opportunity to take photographs.