Graduated UM with a 3.74 and a 164 LSAT. Here's my two cents:
1. Law schools care about the following 3 things first: (1) who you know, (2) LSAT, (3) Grades, (4) diversity relative to the rest of the class and last year's class (this is everything from where you lived, where you went to school, gender, ethnicity, etc. - schools want to pitch "we have 200 students from all 50 states, 20 countries, we're 60% female and 30% minority"). Past non-legal experience really didn't come into play from what I observed. If you know people, work that angle. Otherwise, focus on what you can control: LSAT and Grades. If you're better at the GMAT, alot of schools are accepting that now. I just took practice LSATs over-and-over, but every point counts. If I could trade a 165 for taking an LSAT class, I would. It means a different level of scholarship automatically available to you. Any comparisons to bar prep courses is inaccurate - the bar is aimed at getting 50% right, the LSAT you are pushing for 100% correct (in a perfect world).
2. Shoot for T14, even if you don't plan on going to the Supreme Court or working in "BigLaw". You will appreciate having the options post-graduation and it will make your life easier. Bottom of the class at t14 gets better job opportunities than anyone outside of top 10% of the top 100 schools. You may know what you want to do now, but what if you change your mind?
3. I'm not a litigator, but my litigation colleagues tell me that liking to 'debate' is a terrible reason to go to law school because the practice just doesn't work like that.
4. If you are going to go to law school, don't just get the straight degree - couple it with a data analytics MBA. The need for the number of lawyers out there is decreasing as software continues to automate the more time consuming aspects of our work. Lawyers who can combine their practice knowledge with the ability to manipulate software will be far more valuable than the generic JD.
The legal market is going to have a rough year or two, maybe more - consider your timing of entry.