Applying to uni, but it is so difficult to decide!!

I am currently studying Business Extended Diploma and Accounting, willing to get D*DD and M in Accounting. I have looked at some universities and their courses, am considering to apply for Business Management or business related courses.

I have looked at Uni of Birmingham, Aston Uni, Exeter and UEA. But I don't know where I really want to go and cant decide on the application on UCAS?! Also, does anybody know whether or not Birmingham is good or Aston is better? I'm not sure whether or not should apply to Exeter?

many thanks