Oh my!, I think I heard my brain crack.
Anywho, I'll usually give a dub a chance because sometimes they are done well. Take DeathNote for example, well at least in my opinion it was done very well.My usually preference however is subs mainly because I'm so used to that ...ummm.. accent I guess you can call it. Only other time I would watch a dub over a sub is when I'm eating have to look down every now and then.It just becomes a nuisance to read then.