I suppose it depends on what you define as a world class fighter. Personally I see anyone who is regularly challenging the world level fighters and has a good record against them as world class. The governing bodies do wind me up as often you end up with paper champions who have not earned...
I'm a big fan of both so I'm a little disappointed with the animosity, but that's boxing I suppose...
Going to stick money on Froch to stop Groves in the latter rounds. Will also put something on Groves to win on points as I wouldn't rule that out.