Do you want to be a lawyer? Because if you don't its a worthless degree tbh. And its odd because it only qualifies you to begin training to be a lawyer, so it really kind of tracks you in.
History and politics is more interchangeable and seen as the short of degree where you pick up analytical thinking skills and could work anywhere.
When you say top unis? Which ones did you have in mind,
You could in theory do one or two apps to law, and then three to H&P.
Tbh H&P would be an interesting and frankly eaiser degree to get, not piss easy but more manageable imo. I know some people who do law, and they live in the library year one to three. By the time you get to third year in H&P most people are just improving their average and coasting in comparison.