Since there’s been a fair amount of METAL!! and metal on this site recently, one interesting benefit of it is the willingness to forego standard song structure. I think that applies in this discussion as well.
The longer we all do this whole music thing, the harder it is to find something truly unique. Pop, rock, country, hip-hop, etc can’t really branch out from standard structure in the same way that METAL!! and metal are allowed to. Music that completely ignores it is far more riveting to me. It can get out of hand on occasion (I believe it’s called “Riff Salad”), but I think the price is worth it. Especially when it’s done by other styles that can’t get away from it as easy. My favorite Wu-Tang songs are the ones where there’s no chorus and barely any thematic cohesion. Just 6-10 MC’s saying their best rhymes. It’s almost rebellious.
When it’s done well, its my favorite music to listen to, regardless of genre. A lot of that is in the transitions and the flow. You can be completely original in how you go from one idea to the next. When it comes to guitar instrumental stuff, as much as Satch is my L&S, I find a lot of Vai’s songs to be more intriguing when it comes to his structure. Aside from a few, my favorite Satch songs are the ones that do the same.