Well, if you couldn't stand there "jack ass" lead singer (that would be the aforementioned Uncle Bob aka Bob Pollard), GBV is definitely never going to be your thing. It's alright, they aint' for every one. But, he IS the band, every one else just works for him, although this is the best group he's had since they originally became popular.
Oh, and as for the Robert plant thing, he's actually going for Roger Daltrey. After Roger ingested 2 cases of Budweiser. Singing karaoke. In an arena. Yeah. That's about it.