Apparently the 360 is easier to develop for than the PS3 -- this is to be expected as the PS3 has a brand new massively distributed architecture
http://theinquirer.net/?article=23306
The tools wizards at MS came through this time and made for a better out of the box experience for devs. MS has put a lot of time and effort into this, from XNA to hand holding, so coupled with a more conventional architecture, it wins round one. The PS3 has more raw horsepower under the hood, but is a bitch to use until you can wrap your brain around some very different paradigms. Once you can do this, the PS3 will take the lead and probably keep it for the life of the console. Like the last set of consoles, the initial crop of titles will not be all that astounding, but the second ones will.
So all the black shirts so far agree, MS has the ball right now, from coming out first to leading the initial charge. Sony is coming up behind, strongly, and will take the lead back in 2006. Then again, the consoles won't be out for at least 6 months to a year, and that is a long time. Anything can happen, place you bets, and get in line for a shirt. µ
http://theinquirer.net/?article=23306