Some voice samples from the US version:
Fox, Meta Knight, Pit, Ike, Falco
http://youtube.com/watch?v=UPuesnIp0VYPokemon Trainer (plus a little of Squirtle and Charizard), Marth, Jigglypuff, Sonic, Snake
http://youtube.com/watch?v=kQOEHk9mhbILucario, Wolf, Snake
http://youtube.com/watch?v=arRHChWh5tkEveryone (different set of vocals, some repeated over and over, some mostly skipped over)
http://youtube.com/watch?v=OZFwoRxNFxwI sadly agree that many of the US voices are terrible. Wolf in particular because it sounds like he has a Southern accent (or cowboy). But a couple aren't too bad. Meta Knight sounds like Darth Vader, and Pokemon Trainer... well, it sounds awesome, but it's extremely screechy. At least Wolf says "Play time's over, Star Fox", but it's not in his British accent.
But be happy that they kept Marth's Japanese voice.
One of the comments someone made:
"I'm playing this game in Japanese. That's it."
They took out the Earthbound demo. NOA officially hates Mother fans.
Shoot. Curse you, NOA.
English Taunt Collection!!!
(no music, clear audio:
http://youtube.com/watch?v=tMoKkKiO1RU)
(close up with stage music:
http://youtube.com/watch?v=Z7Bzn8FZWBc)
...mm, actually, the voices are more bearable with the taunts to go with them. Wolf's awesome again. The same howl's there, the Southern accent doesn't sound as out of place. His roar sounds strange though.