For me I think it depends on the character itself,I'm not sure I can say I prefer one overall because there are many so characters and some in the video games tend to change more it seems especially compared to the anime and manga like Tabitha from Omega Ruby from Ruby or even from the Advanced Series..so for me it depends on the character,and considering I don't really read the manga as much as I play the video games or watch the anime so that comes to into play too..

Anime (the main series) is the only one I care about.