I like the references some of the fansubbers use. It is helpful. The japanese VAs are always better, but the dubs are improving. I'm always willing to give dubs a chance but there are some I refuse to watch the dubs. Things I can't tolerate.
1. Will Shatner type acting
2. Southern accents, I don't care if you think it's close to a Kansi accent never give a souther accent to a japanese character.
3.Music, just listen to the dub of Kiddy Grade and you'll understand. Those bitches can't harmonize
4.Outrageous script changes. Changing things around is fine as long as it's still close but changing the jokes, referances, ect. to suit a US audience is just shit.

Alright I'm done, so yeah sub>dub unless you don't want to read, funimation=shit