BSouza,
Compare business if Europe with first in the US. They're about equivalent. - in theory. But BA Club Europe far outperforms any US carrier's domestic First that I've been on. Of Lufthansa, however, the less said, the better.
US Domestic varies enormously, and can be better or worse than the European equivalent. It depends on the airline. I flew Southwest the other week from Phoenix to San Diego and was agreeably surprised at the amount of room, the rapidity of check in (even with an enormous line) and the general staff attitude. Especially when compared with America West, which has gone downhill rapidly since joining US Air.