Further to WWW's post - my university looks for AAAA or AAABB in Scottish Highers; or AAB at A-level. We still have a first year chop rate approaching 40%, average examination marks per subject of 40-45% (just as well the pass rate is only 40%). While so many A's (or predicted A's) is laudible, it is absolutely no guarantee you'll make it. We've never seen any correlation between entry point score and success.
In summary? School qualifications no longer prepare young people for university. They're just a means of filtering.
Good luck