As someone in a top law school, let me give my two cents.
The real benefit of getting a “regular” degree over a BTL exists, but is short lived. By getting a BA in pre-law type courses, I had the background information to not miss a beat when lectures began.
There were some in my classes who did not have a similar background to me and it took them a little bit more time to catch on.
That said, eventually everyone was on the same page and any differences between us became negligible.
That said, so long as you’re a hardworking individual, it doesn’t really matter what you get your degree in. My preference would always be for a non-BTL because it gave me background knowledge which proved very helpful in studying for the LSAT and the first few months of law school. Ultimately it comes down to personal preference and does not mean that you won’t succeed if a BTL is the path you choose.