I am always amazed at the number to British acts that are "acceptable" to listen to in the States because they are "Britpop"...Travis, Keane, Stereophonics, Supergrass, Charlatans, Athlete, maybe even Robbie.
Very few people in the UK who are big music consumers/fans/snobs listen to or respect these artists. They are simply the British equivalent of Matchbox 20.