What do you think about "modern" Rock-bands?

[Barkworm]

Since there are a lot of Rock-threads these days, I decided to start a thread about the popular Rockmusic which has come up within the last 7-8 years. I want your opinion especially on the following genres:
The Nu-Metal bands: Bands like Limp Bizkit, Linkin Park, Deftones but also Korn and Slipknot who do quite heavy music with a lot influence of Hiphop and Electro. Although I own some albums I never got used to this kind od music. The riffs are too simple (of course that's just my opinion since I never learned to play an instrument) and the Hiphop influence is often quite lame. This music isn't my cup of tea.
The New-Grunge stuff: Bands like Creed, Puddle of Mud, Nickelback, Staind etc. who tried to bring back one of the greatest Rock-genres ever. Of course they have some good songs but they'll never be near as good as Grunge has been back in the early nineties. Plus a lot of their stuff is too similar and boring.
The Retro-Rockbands (or the new "The"-bands ): Those are the press-darlings. Their music is not really "new" since they have a huge 70s-influence but bands like Black Rebel Motorcycle Club, The Hives, The Vines or The White Stripes are doing some cool ****. From the three genres I have listed I like them the most by far.
Of course there are other, maybe even more important bands like Radiohead or Queens of the Stone Age but they are not that easy to categorize.
So what do you think?