It makes me cringe, but I can completely agree with what my father says. He sez to me "Dan, there are simply nothing but shite bands these days - no one has had the stage presence and global impact that the Beatles and the bands of their age, has had." Well, the Beatles definately left their mark but not my cup of tea. Nonetheless, I can see where he's coming from and when challenged to name one damn good singer/guitarist or band, the older generation are like "Who? Nah, rubbish they can't compare to X."
I struggle to find a band that really bitch slaps me with their amazingness. Don't get me wrong, I am quite keen on Bush and Disturbed, off the top of my head, but the other thing I find is all the bands really lack stage quality. I've been to so many gigs of major bands (and I hate to admit it, a few boybands - girlfriends made me - otherwise no sex!) where the quality of the performance sounds like something from a karaoke cafe. And to completely flip it, I've had a better time in front of tribute bands than some well known acts. I think part of the problem, as identified by Animal is so many groups would prefer to compartmentalise themselves in a sub-group of metal and be a big fish in a small pond than go up against the true gods of metal.
Anyway, that's my two pence.