If the fees are not your major consideration, then according to the patient load, SRMC and DY Patil are much better than KS Hegde. Though the curriculum and training provided to the students are a lot better in KS Hegde.
The one thing that should matter most is graduating successfully with an MBBS degree. Patient load is not the primary concern until post graduation.
KS Hegde also gives a lot of importance to extracurricular activities, sports and cultural events. This helps in the students holistic development as well. Therefore, analyzing everything, it is suggested that KS Hegde will be better to pursue an MBBS degree.