You should ask, "what are the differences between USA evangelicals, USA charismatics, USA baptists, USA Methodists, USA Presbyterians, USA independent churches, USA Mormons, USA Jehovah witnesses?"
The puritans who had to escape to America, were so humorless, so austere, so out there, that even the protestants in Europe couldn't stand them. And from that original schism, things have just gotten worse.