Oasis lyrics do mean something - plus they are littered with Beatles references, which in my opinion promotes them to god-like stature.

Jimmy Page used some alternate-tunings as he was inspired by folk musicians(and ripped off their music in many cases e.g. White Summer - She Moves Through The Fair) and built on that with songs like Going To California.

And Noel actually does credit some people ("Hello" partly lifted from Gary Glitter, "Go Let It Out" alot of lyrics are from a poem Noel liked.) And Macca is a fan of Noel's, they even played together in a group in the mid-90's.