Re: Dave Grohl
In my (modest) opinion, I think Grohl is a modern day version of what Phil Collins was in the 70's and 80's - a supreme songsmith who had a sound that was just always somehow right on the money. That's not to compare style or anything else, just to say Grohl has a real place in the last twenty year's worth of popular music, that being, heavy catchy rock tunes that seemingly always have supremely confident rhythms.
The hyper-sophisticated drum tracker he's not, but he consistently makes music that boils it down to songcraft over style (although, like Collins, his style seems to be instantly recognizable). It's deceptively simple, I think, since it IS so simple. But it's far from simplistic, I think, which seems to suggest it's fundamental.