the Ripps, the Harrisons, the Holloways, the Rifles, Milburn, the Pigeon Detectives

Someone explain! Are all of these bands the result of a post-Arctic Monkeys signing frenzy? Or is Libertines idolatry the root cause? Are any better than others, or are they all 19 year old identikit tightish jeans, floppyish hair, singing about the pub, fuzzy guitars rush to the chorus in 35 seconds the same?