Why do I like radiohead? It's great rock and roll, for starters. It is also great "artsy college rock". The poetic quality of the lyrics inspires the English literature student in me, and rather than seeing their lyrics as "depressing", I prefer to analyse the great social and political messages they deliver through their music.
Lastly, they put on an awesome show, and their concert that I attended in Vancouver (see avatar) was one of the greatest days of my life.
Oh, and Franz, what are all the concerts that you have seen? I love listing concerts (though a lot of this is down-to-earth canadian talent, and maybe you kids in the states wouldn't recognize some of them):
Smashing Pumpkins (in 1996 and then again in 2000), Eric Clapton, Tragically Hip (twice, the last time in a concert hall 5 rows away from the front), Tea Party, Big Sugar, The Guess Who, Foo Fighters and Our Lady Peace (same outdoor concert that I saw the 'Pumpkins at in 2000), plus a few outdoor festivals.
And I'm still kicking my own ass for not going to see the Red Hot Chilli Peppers last fall (was too poor from going to see Radiohead