Wembley or Edimburgh?

I am not from the UK, but I have been to both cities before, loved them both in their very different ways.

But I want to know your opinion on where to expect there will be a better live rock/crowd atmosphere? (If it is a dumb question thats because im not from the UK, again)

For example, Manchester where they are from and a huge park with everyone standing I would love to go, but I cant travel in July.

Hope I made myself understood