Which coin should I keep? I mean it will going to seperated but which is going to be profitable more ?
It's your decision mate. What if people here will told you to hold BTC or BCC then it doesn't goes to the direction you want, you will blame them? If you believe in bitcoin then hold it while on the other hand, if you believe that BCC will give you more profit then choose BCC.
Analyze the current trend and spend time to think where do you stand your side.