I think they are good but aren't they just copying Adele and Amy Winehouse? Not saying they are not good but... I prefer one having their own unique voice. US singers will stick with their own sound - pop, rap, R&B, yes, a bit shallow but still entertaining, British vocal tends to be more soulful, jazzy. They do represent their own sound of the era for that place. Just my 2 cents. Thanks for sharing the links and love your blog!