Is call of duty ghost better that battlefield 4

That depends what kind of game play you are looking for. Overall, Battlefield has huge, open maps full of tanks, helicopters, jets, and so on, so it really is like a battlefield in terms of realism. There are the occasional maps where there are no vehicles, but those can also be fun.
Call of Duty is known for smaller maps, but a higher paced, more arcade experience of combat, which the opposite of Battlefields more realistic approach. Call of Duty is also tends to me more competitive since there are less players and less space to do combat.

Graphics wise Battlefields Frostbite engine technology can stunningly feature realistic environments with destructible terrain such as building and the knocking down of trees, and craters in the ground where missiles and explosives have detonated.
Call of Duty is an arcade experience with little to no destructibles and a graphic output that is not quite as sharp as Battlefield and tends to lag.

So overall I would prefer Battlefield.