Thanks ben for the praise.
Take my words with a grain of salt, as I do not own anything of a category within the Trinity/ALS range etc., and have little experience handling them in person.
My opinion is that GS excels particularly in certain facets, while understandably has to compromise on a few others. I believe plenty of effort is done at GS to get the dial quality way up there. From the photos I've seen, the hands and indices are amongst some of the most microscopically, precisely machined tiny things I know of on a watch dial. The closest thing I can think of that another brand does similar to this is maybe the Patek 5227 - I've seen in photos that they have steps in the indices and even a tiny, raised lip on the date window! However, the hands I feel are more precisely finished on the GS as far as photos go.
(Image taken from Perpetuelle)
I feel that its mainly the movement that a Grand Seiko lacks artistically compared to its competitors. Not that its not well done, but simply the finishing choices feel more industrial and machined rather than the usually more elegant styling done by the rest.