America's voice is OK. England's NOT - at least for me. Mostly because he's accent is not "English" enough. Yes, I'm aware that there's no such thing like one British accent but many of them, but still. It could have been better. I remember Tao Ren from the Shaman King have posh accent and it sounded pretty good for my non-native ears.

I also do not like the 'Britain' thing. Sure, I know that what's written in the Japanese manga but strips very clearly suggest that it's about England. I mean - it was England who defeated the Armada, got conquered by the Normans and such. (Plus, I understand how people from Wales and Scotland may feel about it. Remember that in Europe such notions like 'nation' and 'country'/'state' are two different things. We are touchy about this. All those wars, anyone?)