Panvel Is best...Navi Mumbai is also a good option.. sorted ahe life...best part of Panvel is connectivity with Mumbai Pune ani Goa Highway Pan ahech.. plus Upcoming Airport ahech
I didnt like western side due to the feeling the that its in corner side of Mumbai ... Specially for people who travel most time towards Navi Mumbai, Panvel, Pune, Raigad. I stay in Thane.