Monster Hunter Tri was first announced for PS3, but was canceled. It's also one of two installments that have swimming and underwater combat. When asked about why they went Wii, they said
Monster Hunter Frontier G - PS3 Games
Monster Jam Path of Destruction - PlayStation 3 | PlayStation 3 | GameStop
Finally, a Monster Hunter game's coming to PS3! – Destructoid
Monster Hunter Frontier G9 - Premium Package | Sony PlayStation 3
25 Underrated PS3 Games | Den of Geek
Death Monsters [PS3, Xbox 360 - Cancelled] - Unseen64
Monster Hunter Frontier G coming to PS3 and Wii U - Polygon