I'm new here.
I love the One Piece manga (but admittedly, I've only read as far as it's gone in Shonen Jump) and I like the Japanese version of the anime too.
Other than One Piece, my favorite manga are JoJo's Bizarre Adventure (every series, even VI), D.Gray-man, Shaman King, Butsu Zone, BAOH, Real Bout High School, Bobobo-bo Bo-bobo, Hajime no Ippo, and History's Strongest Disciple Kenichi.
In terms of video games, I mostly play fighting games and RPGs.