I like music with melodies. I spent quite a while with the information in Holdsworth's video and book. He deconstructed the scale into the 12 tones, the rebuilt it using mathematics, discarding scales that had more than four consecutive chromatics. He came up with ten scales, only one of which is the "regular" diatonic one. In his view - which I agree with - modes are just a part of a single scale, and fingerings should reflect that. But after he found his ten scales, and spent several years working out the chords that are built along the neck - after all that I don't find his music too compelling. Sing your favorite Holdsworth lick - whistle your favorite Holdsworth tune! Just because something is complicated doesn't make it great, a situation paralleled by many 20th century writers, composers, artists... how exactly do you kick Beethoven's (or Led Zeppelin's) ass? The reasons why one artist will appeal to your ears and not another aren't too complicated - early listening, emotional tone and range, execution - but to call Holdsworth the greatest kinda ignores the 800-pound elephant, John McLaughlin. He's written and recorded brilliantly in four or five different genres, and for whatever reasons I can listen to McLaughlin for weeks on end and Holdsworth for about 20 minutes.