How much info do I need for appeals?

[NotDoris]

I submitted appeals for all 6 of our preferred schools (was offered one which wasn't on our list) and now I'm back from our holidays I'm starting to think more about the upcoming appeals themselves.
We have our reasons for wanting any of our choices - they all offer music clubs and bands, and a gcse which DD has set her heart on. Offered school has a very disappointing music department, and cannot guarantee the gcse will be available in the future.
I see people asking for information on the PAN, class size, etc, etc. Is this something which I need to find out and bring up at the appeals, or will the school or panel have this info already?
Thanks!

[NotDoris]

I recieved dates for 3 of the appeals this morning, has anyone got any advice for me? Please??

[NotDoris]

I see, thanks!
Do I need to find out that info from each school beforehand, or will I be told that at each appeal so I can argue it there and then?