Not sure if anyone has heard of Byzantine. I think they have pretty unique vocals (screams and cleans). I'm not really in an analyze-it-all-and-tell-you-exactly-why-I-like-it kind of mood, so just one sentence will do. Also, I didn't spend too much time picking songs to display their talent but I don't think it matters because I haven't heard a bad, filler song from them.
I really like the changing chorus in this song.
I really like the riffs and drumming here, especially during the chorus.
I like the big change from heavy to soft/slow (or whatever you want to call it) about halfway through I guess.