I know that this question depends really very much on plenty factors: 2D-Pong and a MMORPG are two totally different worlds; it also depends on creators' experience, on game quality, on the available technologies, on target platform and so on, but well, I guess we can categorize games and study the average (or maybe focus on real-world examples).
How long, in man-hour, does it take on average to create a:
AAA non-MMO game (like a RTS, an FPS etc, RPG)
Game for mobiles
Amateur desktop game
What phases can we split the game creation process in (story designing, writing the engine, creating art, testing ...) and how long would each of these take (for the above categories)?
Examples of real games would be apprecciated!