i'd like to say Oasis , they are the best band in britain outright alongside Radiohead, Coldplay and U2 etc .... (by the way are U2 british , i'd argue they are in a unwritten rule)
BUT at the moment i'd say the Arctic Monkeys , their last 2 albums are better than Oasis's last 2 , but not "Def Maybe" and "Morn Glory"
Muse, Radiohead, Manic Street Preachers, Bullet For My Valentine, Biffy Clyro... to be honest I don't know why I even bothered replying as there are still quite a lot of brilliant bands in this country.
British Sea Power. Possibly a bit too arty to ever major-league it alongside yer Coldplay's and Kasabian's and what-have-yous.....but not many, if any, British bands in the noughties have produced three consecutive albums of such consistently high quality.....they deserve more success than they've received, it's not as if their singles aren't radio friendly. A pity.
Skunk Anansie have reunited, so them But in all fairness, it's probably only going to be for a greatest hits tour so they're not really "current".
For me it'd be Maximo Park. They're not my favourite band, but I've just realised I don't listen to many bands (in the traditional sense of the word), and the ones I do are not from the UK.