Holdwsorth is one of my all time favorites.
Sometimes you have to force yourself to listen to him to help understand where where he is coming from.
Theres some great Miles Davis quote or maybe it was about Miles Davis to that effect about making yourself listen to stuff you dont understand and it ultimately expanding your horizons/vocabulary.
That being said I only saw him once in Huntington Long Island a few years ago and although it was shred galore it actually got boring to me after a while, I just couldnt digest/process it after 90 mins or so.