According to gamepro.com that is.

They raise some valid points indeed, while I cannot agree with all of them. After all, software sells the hardware. And where the 360 is, there is software. PS3? Not so much. Wii? Neither.

One should not blame this on the company or brands though. Sheer fanboyism is not the solution. The Wii and PS3 are practically "new" on the market, thus they can't help the lack of software. The further delay of MGS4 certainly doesn't help that for example. Given the +1 year advantage of the Xbox360 platform, it has a respectable amount of exclusives (both 1st and 3rd party) coming this year, and at this time I certainly wouldn't call it in trouble.

In fact, I would rather call the PS3, which is losing exclusives left and right, and the Wii, which has exploited the mainstream but is disappointing the hardcore, in trouble. While it's really too early to call darkness out on either.