That's a pretty bold statement itself! Are you referring the the whole maps app (compared to androids maps app of course. It'd be unfair to compare it to the Apple control app) or to just the 3D imaging?
Don't forget google has technically beat apple out of the gate with releasing 3D imaging to google earth a few weeks ago. I'm not sure how it'll compare to flyover, but we'll have to wait till iOS 6 release to see,
Google haven't beat Apple at it at all. Googles final release has less cities than apples beta and they are of much lower quality.