Hmm...would have jumped on this for sure at launch. Can't quite make up my mind now. If it were a more traditional RE game I'd have been for full price...
Remember, the 360 one has save corruption. The PS3 one had locked saves, but a patch took that out (and apparently the unpatched game can run saves that were "unlocked" with the patch, for playing-it-in-the-future-purposes).
So the PS3 one is the way to go...although I'd like if they released updated versions of both with whatever patches are needed included already.