This is a great thread. I've really got a jones to try Argentinian beef so I can make a genuine comparison.

What I feel I can add at this point, though, is my two cents on grass fed versus grain fed. I take grain fed. Every time. No question about it. Grass fed beef to me, while leaner, doesn't get the full flavor development and is significantly tougher. I always look for grain-fed beef. That said, I'm also really wary about the use of dead animal matter in U.S. beef. That just doesn't fly. I think we're in for some really scary times ahead with the beef industry in this country ... but hopefully I'm just worrying too much. Still, with all the mad cow scares and the questions surrounding the use of hormones and antibiotics -- it's just not something that makes me very comfortable. Of course, that could mean continuing great days ahead for Argentina's industry.