I generally prefer subtitles. I am a fast reader so I have no problem keeping up. Subs are also usually are available long before dubs. Another reason is I've found the voice acting in dubs to generally be terrible. Even if the voices are good if I'm rewatching an anime that I had watched before with subs it just sounds wrong. reply
Sub. I remember in an anime with ghosts, the protagonist said something so shocking, in dub. It was an anime that somehow got aired in dub. The protag (girl) said "Even if you're black .... we will still love you!" (dub) reply
I prefer dub since I don't mind how they sound and would like to avoid reading but I don't mind sub. I watch sub if it's ahead of the dub, no dub is available or what they are saying doesn't match up with the animation in dub. 1 reply
