Hideo Nakata's 1998 horror flick Ringu gave fright films enough of a fresh face that Hollywood put together the US version in 2002, directed by Gore Verbinski. I liked the Japanese version better; to me, the slow suspended pacing was more disturbing.
But I wasn't able to Ju-on, Takashi Shimizu's "haunted house" film, but I think it's time to turn the tables around. Hollywood's version, The Grudge, opens in theaters late-October, and I plan to watch that first before the Jap version. What makes this Sarah Michelle Gellar-starrer intriguing is that it's Shimizu himself who's directing. So it's no longer a matter of which version is better, but more of how Shimizu handles his original 2000 material with a higher budget in hand and the Western market in mind.
Needless to say, the trailer is creepo.