Scott,
The Nationals is at Barkston Heath in Lincolnshire, this is an ex RAF base, in sunny old England (NOT).
The best show (paying public) I would say is the Nationals this is August Bank holiday you dont have the same bank holidays as us.....Usually 25ish of August you get there Friday to set up go home Monday night....
The Nationals has loads of different flight lines, Imac, jets, heli's, Pylon racing, Fai aerobatic, scale aircraft, funfly and control line....In the evenings all of the blokes seem to get out their free flight models and it is a great laugh. It seems to be a thing about who can knock out the most people......
They also have a hangar open all night where people get worse for wear, amongst people throwing their rubber band models.

If you want a jet meet just pure jet flying then it has to be St Athan in Wales about 10 minutes from Cardiff airport. Everyone seems to get to this meeting....Sometimes they even give a Tornado display on the Friday night.....St Athan is usually 2 weeks after the Nationals. This is a well attended jet meeting....
St Athan is an RAF base, there is no paying public....

So its up to you......

Laura