Bloody Hell! Now I've heard everything! Only common factor is two guitars, bass and drums.........so just the same as, well, nearly everybody really, apart from the few that have a keyboard, or manage with just one guitarist.
That really isn't the only common factor. I'm not saying they sound that much like Slade, they just sound more like them than The Beatles.
The Oasis-Beatles thing is a myth. But even if it was true, what's wrong with sounding similar to the best there was and ever will be? Oasis, Beatles and Slade etc. all influence me when I write songs. There is no other way of writing pop/rock songs, they use the same formula.