Most exclusive games that won GOTY awards last gen were on the PS3 followed by the Wii with the 360 exclusives being almost non existed...PS4 games NOT ON XBOX ONE are rated higher then games not on the ps4. Bloodborne will win at the least a handful of GOTY awards. Don't need a crystal ball just actual experience with the game and reading through countless of threads and reviews praising the game to see this happening. Don't see a Xbox One EXCLUSIVE game outscoring it or getting more GOTY awards(in 2015). PLUS more PS4 games NOT ON XBOX ONE came out and are coming which could also outscore games just on XBO.
The ps4 games are remasters though, maybe 1-2 indies. 2015 isn't over again.
Also, those highly rated games aren't received well by the community as they don't sell very well.