I've put up three sample shots taken within second of each other, one with the built-in WP8 Camera app, one with Nokia Pro Cam and the final with 1Shot. Maybe it's just me but the built-in cam picture seems to be better than the others:
https://drive.google.com/folderview?id=0B_wsN0PxaDOpQnNaQlMtWC1yRlU&usp=sharing
https://drive.google.com/folderview?id=0B_wsN0PxaDOpQnNaQlMtWC1yRlU&usp=sharing