Definitely MAMC definitely,

All neet toppers prefer mamc over kem mumbai and second thing is its fees which is very less tham kem mumbai , you can do your mbbs in thousands. Thirdly, mamc will offer you more stipend money because mamc is run by delhi government while kem mumbai is run by mumbai municipal corporation and last not the least mamc have the best campus life built in 122 acres with almost all facilities.