A level subjects combinations for Economics?

Hi :) I'm about to study a 2-year A level course and I'm still very confused with my subject combination. I hope and aim to do Economics at a good university (top 5) like LSE or UCL but i don't know if my combination of Maths, Economics, Statistic and Law is ok. I heard Law is very hard to get an A so I was thinking to do History instead of Law. What do you think i should do? Please help, thanks a lot :)