Both Ramjas College and Kirori Mal College are quite reputed colleges. There are no such parameters to differentiate between these two. Both of these two institutes have good faculty bases. You will also get decent facilities to learn at these colleges. 

The only significant factor that can be mentioned is that Kirori Mal has a NAAC A+ accreditation with a better grade as compared to Ramjas. However, it’s not wise to compare these two institutes based on grade. You will have decent opportunities at both. So, you can opt for any of these two based on your convenience.