I love the english voice actors in cowboy bebop and ghost in the shell stand alone complex.. eg. the guy who voices Batou, same voice actor for 1995 movie and SAC show, that's the definitive voice of Batou for me.

Also the voice of the major in SAC is great... but the one from the 1995 movie.. cant stand her.. nails on a chalkboard, sounds so american.. I need to watch the dub of that in fairness.

Yeah, just off the top of my head have to find words that fit the duration and reasonably fit the mouth animation, replace idioms and jokes that don't exist in both languages, and not lose the appropriate tone.