I have been admitted to UCLA with a sizable scholarship and to UChicago with 15 k scholarship (which is less than UCLA's). My areas of interest are arbitration and corporate law, I have had 2 years' working experience in my home country, and I consider the possibility of finding employment in the US during OPT year.

I know that both schools are great, but my dilemma lies in the size of the scholarship and employability after graduation. UCLA provides greater financial aid, whereas UChicago ranks higher and, as I have seen in some other threads on this site, provides better career options.

The deadline for accepting UChicago's decision draws near, and would appreciate if anyone could offer their insight on the matter.

In my opinion you should give priority to the financial consideration as UCLA and Chicago are both excellent schools and will be a great starting point for your career (and on the other hand, no guarantee for a post LLM job). LLM is a very expensive experience and if there is an opportunity to relive some of the financial burden, you should embrace it.