@BigJ, I'm not programmer, thats for damn sure, but I've heard and read so many things about both processors, and from what I've seen of insomniacs work, the PS3 still has PLENTY of headway. I don't know much about the general purpose uses for gaming, but when I hear people dumping graphics, physics, A.I., framerate, etc etc onto the SPE's, it seems to me that it's MUCH more accessible for gaming than some people want to accept. That combined with the PS3's streaming features and I can't see any aspect of dedicated 360 programming coming anywhere close to dedicated PS3 programming, and to boot they have a guaranteed hard drive.
The most technically impressive titles (to me) this generation have been on the PS3, be it the insane cutscenes with some of the greatest mo-cap I've ever seen, the sheer amount of on-screen detail, or the amount of constant activity going on at once, I just can't see it being chalked up to lazy 360 devs.