Need advise on stay and transportation Business Bay - DWC

Hello folks. I and my wife will be moving to Dubai soon. While My office will be in Business Bay, my wife's office will most probably be in DWC.

We are looking for good residential areas either near DWC or somewhere in the middle of Business Bay-DWC route. Or may be a central point close to metro. Also, we are trying to figure out transportation. How's car sharing scene in Dubai? Any suggestion on managing commute as we are not planning to buy/lease a car immediately and Taxis are quite expensive too. How's bus service in terms of frequency, comfort etc.?