For fear of posting in this type of thread and being labeled anything, , I state that my preference is not due to any type of fanboyism, but quite possibly the "newness" of my PS3.
I own a Wii, a 360 and just recently, a PS3. I've had the 360 since launch, and think it's a GREAT console. I've had a lot of fun with it over the years, and played a lot of good games.
Fast forward to now. I wanted a Hi Definition DVD player for myself. With the recent news on Blue Ray and the movie studios, I figured the war was kind of over, and decided on Blue Ray. Well, for me, the PS3 was a no brainer with that thrown in.
Now that I have owned it for a few days, I must say I am more impressed each day with it. It's a very well built system, with amazing graphics, features and capabilities. SO FAR, I prefer it over the 360, but then again, there is that new factor. Bottom line is I'm a gamer, and have been for a very long time, so I will always want to own all possible gaming solutions.