Goodwood revival vs FOS

Hi All,

Attended the Festival of speed last year for the first time, enjoyed it no end and will be back but sadly not this year because of clashing obligations, considering going to the revival in September. Just wondering how it compares, is it a similar layout to the FOS just with older cars and people dress up, do you see more/less, is a grandstand ticket a must because there is actual racing rather than the hillclimb?

Would really appreciate the input of those who have attended both, which is your favourite?