IIRC the PS3 / X360 were harder to compare, being completely different and all, and even then, most people here knew that they would be roughly the same or even picked the X360 as performing better in most cases. This time they have very similar hardware and are easier to compare, aren't they?
You should go back and read some of the discussion around the time of the PS3 announcement.
There very few on here not enamored by the large flop ratings of Cell.