I'm not going to rip into Metal_Wrath for this thread. I can see why he made it. But it IS even more vague than the metal thread, and therefore almost impossible to answer.
Acts I love from Europe include: Opeth, Radiohead, Hope Of The States (now split

), Anathema, Muse, Portishead, Sigur Ros, Ulver and about a BILLION others.
Acts I love from North America include: Tori Amos, Death Cab For Cutie, Explosions In The Sky, Low, Tool and about a BILLION others.
Ach, forget it, can't be bothered expanding more...