Dude there is not much to compare here other than the fact both bands took a more layed back approach this time around. In Rainbows is much more refined and coming from a highly prestigious band. Don't feel bad because there aren't many bands in history that have anything on Radiohead's back catalogue. This probably will only be my 4th favourite Radiohead album because I still feel it's way behind Kid A, OK Computer, and The Bends in creativity, rocking out moments, and experimentation.
With that said, In Rainbows>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>MTM. I probably need alot more of these >>>>