JRPGs: text. The dubs are never any good in any language.
Japanese fighting games: Japanese.
Anime: depends on how westernized it is. Some anime works better in English (Black Lagoon, Cowboy Bebop, et cetera), some of it works better in Japanese (such as anything set in a Japanese high school featuring giant robots trying to catch a peek at the ladies' side on a visit to a hotspring. I think a few of them might have run together in my head).
Japanese fighting games: Japanese.
Anime: depends on how westernized it is. Some anime works better in English (Black Lagoon, Cowboy Bebop, et cetera), some of it works better in Japanese (such as anything set in a Japanese high school featuring giant robots trying to catch a peek at the ladies' side on a visit to a hotspring. I think a few of them might have run together in my head).