As usual, Metacritic analysis proves nothing.
Currently, the only reason I have to turn on the 360 is Gears 2. But that alone makes it worth having one. Even if it pops up on PC a year later, it's still a year later.
But there's enough crossover that it virtually boils down to a handful of titles on any platform that make it worth choosing one over the other if you can't afford both.
Gears or Uncharted? Forza or GT? Resistance or Halo? MGS or nothing comparable on the 360. LBP or nothing comparable on the 360. Banjo or Ratchet? Fable or Valkyria Chronicles (bad comparison since the RPG pickings are pretty slim on the PS3).
It doesn't make one a better choice than the other unless any of the platform specific titles are absolute must have. If so, then the choice is simple.







