Edit: These are just reviews and opinions. Buy what you like best.
The biggest change for Call of Duty: Ghosts from current consoles to next generation consoles are the amazing new graphical capabilities. Call of Duty: Ghosts has beautiful visuals that look dramatically better when compared side by side with current generation versions of the game. Graphics are extremely important for players since you want a game to look just as good as it plays. There's been plenty of talk around the interwebs about the difference in the display of Call of Duty: Ghosts on PlayStation 4, that runs the game on full 1080p display, and Xbox One, which features 720p display enhanced for the best picture quality. After testing out both versions of the game, the PlayStation 4 version of the game may look just a bit better in still screenshots of the game, but the game runs much more smoother on Xbox One with very few frame drops and other bugs that somewhat plague the experience on the new Sony console.
"In fact, I'd go so far as to say I actually preferred
on Xbox One. Of course, it all comes down to preference, but I like the staggered stick configuration for first-person shooters, so I naturally gravitated toward the Xbox One controller. If you don't mind the stick layout of the DualShock 4, then by all means go with the PS4 version, but don't let the 1080p mumbo jumbo take precedence over your controller preference.
In addition, I also thought the experience ran a bit smoother on Xbox One when compared to the PlayStation 4 version, especially during the campaign. Perhaps going with 720p upscaled to 1080p allowed Infinity Ward to craft a slightly better performing game at the cost of a few pixels... I don't know. After all, I'm no tech expert; I can only speak to what I saw with the limited knowledge that I have. I honestly didn't see a difference as far as resolution between the two, despite the difference, so I'm either blind to that sort of thing, or it really is a non-issue. "
Call of Duty: Ghosts is a stunner on Xbox One. It may not be the flagship title to demo in hopes of proving how superior next-gen gaming is to current-gen, but it’s one of the finer looking launch titles on the console. The differences in quality will be instantly apparent to devoted players of the franchise and the Xbox One controller feels like it was built for the game. I haven’t had enough time with the PS4 version to declare this the definitive version, but at this point it’s my version of choice. While Ghosts is superb on the Xbox 360, future Xbox One owners would do themselves a great disservice for not investing (or upgrading to) this version.