Well, I'm sure this is just the start of ye olde Radiohead backlash rearing its ugly head, but I'll share some thoughts.
The Bends and OK Computer are probably what I've given the most spins, historically, so I don't get the fantastically original thing. They did rock. They did it well, when a lot of their peers happened to be crap. (Or maybe this is just me. I stopped listening to much rock from about 1996 to 2003

.) They can write a damn good tune. And Thom's singing/lyrics, well, you like it or you don't.
Then Kid A came along and became this massive indie shibboleth. I was introduced to Pitchfork via a friend's link to their review of it. No sound on that album, even, is new. At all. I was listening to everything they pilfered for it at the time

. But, as they say, immature artists imitate, mature poets steal. They put it in a new context and changed the landscape a bit. Indie heads became a somewhat less parochial. It's not one of my particular favorites (save a few tracks) but it is richer than it is derivative and I think our perspective is deeper for it.
Amnesiac, on the other hand. Amnesiac is one of my favorite albums of all time. Now, go ahead and flame me away for this, but I read it as a transfiguration of/commentary on/reverse concordance to/cryptogrammatic reconfiguration of the phenomenology of Kid A (and the surface of all this that it managed to scratch at points) as I just described it. If the words "postmodern" or "deconstruction" make you want to leave the party, well, I didn't say you have to like what I like. But in this case I think convential indie wisdom has cheapened our collective experience, because convential indie wisdom is, well, dreadfully modernist, and doesn't leave much room for art beng about other art or reflexively about itself instead of about, well, sounding cool. Although that is changing. And I do not think any of this needs to have been intentional (or even was) on the part of Thom et al. Take that as you will.
Hail to the Thief is just utter crap. I should have just downloaded 2+2=5 and not wasted my money. I haven't the foggiest if they're going to regress further into "sounds cool" next time or actually pull out something conceptually interesting, but, well... I would say "I'll download it first this time" but it did last time and I still bought it (dunno what I was thinking. Other than it was on 0-week sale and I hadn't formed an opinion yet. Anyone wanna buy a used copy?)