Both of these offer good courses in law . But for better comparison we can compare them on the basis of their placements , fee structure and reviews by people .

1. Amity Law School , Noida : The course offered is B.A.LL.B Hons. . The avg. placement in 2019 has been 4-5 lakhs per annum . 30-40% of students went for litigation while five students have qualified in the Judicial Service Examination of Delhi and Haryana and are appointed as judges. Students have been placed in the international and national law firms like Herbert Smith (UK) , Allen Overy LLP (UK), Ashurst (UK) , Anand and Anand , Luthra & Luthra etc . The fee structure for sponsored category is INR 1.98 lakhs per annum while for non sponsored category it is INR 1.32 lakhs per annum . It's a decent college for pursuing Law, which has really good and helpful faculty, a decent student crowd and a very good campus infrastructure.
2. OP Jindal , Sonipat : The courses offered here are B.B.A.LL.B Hons. , B.A.LL.B Hons. , LLB , BA Legal studies Hons. . For B.A.LL.B Hons. The avg. placement has gone upto INR 8 lakhs per annum . JGLS has achieved record placements in 2022 with 48 offers in leading law firms, on day zero and day one of the placement processes. Cyril Amirchand Mangaldas emerged as the top recruiter with 15 accepted offers and one PPO. The list of top recruiters included leading companies such as AZB & Partners, Trilegal, Argus Partners and HCL.The fee structure is as follows -Bachelor Of Legislative Law (LLB) {3 Years}18,00,000 , BBA LLB (Hons){5 Years },27,50,000 , Master of Law (LLM){1 Years},8,50,000 , BA.LLB (HONS){5 Years},27,50,000. Jindal law school  ranked 76 out of all law schools globally in the QS World Rankings 2021  . The university was again ranked as the number 1 private university in India in QS World Rankings 2022. The university has also been granted the status of Institute of Eminence by the Government of India in 2020.

According to my perspective, if you have an option between these two then you should definitely go for OP Jindal law school . Rest depends on your choice and comfort . All the best for your journey ahead !