My son is right now finally properly getting into superhero comics, Marvel specifically (which is fine, for the moment). So, first of all:
Secondly, we just got some stuff from the library and I bought him a collection of classic Avengers tales. It’d be nice to next get him some good stuff that’s more modern than the sixties (from 80s-90s to today, say) and that are good reads for kids. But I’m not a heavy Marvel reader, and most of the stuff I did read was pretty much all more aimed at adults than at 11-year-olds - I don’t think Bendis’ or Hickman’s Avengers runs, for example, would be a good place to start for a kid. Never mind The Ultimates… Ultimate Spider-Man would be cool, obviously, but I think he mostly wants Avengers as a team right now, so I’m looking for good runs with good Avengers line-ups that aren’t heavy on continuity.
Didn’t Kurt Busiek write Avengers for a while in the nineties? His style should fit. Or Mark Waid maybe? Not the recent stuff, but something a bit older?