[Jesshie]

Eh, they're about the same. It really depends on who dubs it, to me. Companies like FUNimation dub really well, whereas 4Kids can't dub to save their lives (mainly because they insist on Americanizing everything they get their grubby hands on). Some dubs sound really...bad, but some are really good. I always love subbed though, you just can't compare to the original. Though sometimes it's just easier to watch it in English than read subs.

tl;dr --> either or.