With the exception of no classic rock in that list, I simply see it as active rock and not alternative rock.
Modern bands for Alt stations include: Muse (active plays only one that I know of), Silversun Pickups, Arcade Fire, The Joy Formidable, Cage the Elephant (can be played on both formats).
Modern bands for Active rock stations include: Slipknot, Five Finger Death Punch, Skillet....
Alt stations (in my opinion) have more of a European (England) and Canadian back ground. Not all of them though... Yeah Yeah Yeahs are from New York after all.
Active rocks station bands are 98% American unless its a sneaking in some classic rock from time to time.