Neither Silverstone or Donnington are up to the mark IMHO.
Silverstone is 3 miles wide and the speccys are so far back they ought to provide binoculars.
Donnington is better viewingwise but the facilities such as the loos and access are dark age stuff.
If I had to I'd choose Donnington every day of the week for motoGP.......and watch it on TV at home where the facilities are better
Now WSBK has been canned at Brands I won't be going to watch any world championship stuff live in the UK this year.
Ray.