Comparision of big PSP games and sales:comnget points ratio:
Title - first week sales (Famitsu) - comgnet points at realease - sales per 1 comnget points in thousands
Monster Hunter Freedom 2 - 746313 2561 0.29141468176494
Dissidia: Final Fantasy - 503723 703 0.71653342816501
Crisis Core: Final Fantasy VII - 470152 755 0.6227178807947
Kingdom Hearts: Birth by Sleep - 456453 1234 0.36989708265802
Monster Hunter Freedom - 118317 243 0.4869012345679
Phantasy Star Portable - 329455 303 1.0873102310231
Phantasy Star Portable 2 - 284883 535 0.53249158878505
Average sales per 1 comnget points for above titles - 586 .
The list doesn't include MHP2G becouse I wasn't sure if the comgnet numer I had for it was correct (the number was close MHF2).
Beside that the list contains all PSP games that sold more than God Eater acording to Famitsu. But no re-relases.
So only one game managed to sell more than 1k for 1 Comgnet point. It seems that Comgnet ranking favors PSP over other platforms.