Can't have an opinion on that. Never eaten UK beef. Canadian beef that I eat is grass fed and I occasionally enjoy a good sirloin steak here. I have also tried Argentinian and Brazilian beef - very good. I don't eat corn fed American beef. Cows should eat grass not corn in my opinion. There is an interesting documentary we recently saw called Steak Revolution. It's on Netflix - quite interesting. They explore the culture of steak and how it varies from country to country. Leaner beef steaks in some cultures are the popular thing - fattier, marbled meat considered better in others.