Listen to pappa roach's "Last resort" (which pretty much stole that riff from iron maiden's "hallowed be thy name"), and "half way between Angels and insects" (or whatever it's called, outright stole that bass bit from system of a down's song "spiders" on their first album first album, and what's worse is that the vocal was on both songs is similar to the bass line, and the plagerising gits got famous from it, now that's disgraceful).... Thier other song, "broken home", sounds like the guitar part from REM's "bang and blame" with out the backing... and those are the only 3 songs i've heard by pappa roach...
Now that level of "similarity" in my book is totally unacceptable... I mean, I write far more original stuff than that, for god's sake (which is yet to be completed)...
I've got nothing against using your normal chords, wich are shared, but as long as you do something new with it... and that takes creativity...
you could steal someone else's stuff, re-hash it, and get some big shot producer to put loads of reverb on it, boost the mid range on it, etc etc ... Now that's being work man like...
I mean i wouldn't mind Oasis at all, if their lyrics meant something, than alot of toffee.. cos the vocal melodies are quite catchy, and you do find your self singing some of thier stuff...