depends on what other people want to do. there are multiple ticket options, including the goldpass, which costs quite a bit more, but you get a VIP enclosure right next to the planes and i think you also get to go walkabout and take a look at all the planes before they all go up.
i dunno what people want to do and how much they want to spend, but i might be tempted to spend the extra cash.
there are 2 days, i was thinking the saturday, easier for most:aok
depends on what other people want to do though, im quite happy to do what everyone else wants to do