Vexelstrom I guess, since it runs the only great song in the game, and doesn't have much terrible ones.
I just have to mention Morro Rock radio, which is a complete travesty and doesn't seem to have a single piece of rock in it (not that Im going to sit through it to confirm as all Ive heard of its music is violently repulsive). I saw this coming years back as CDPR didn't hire any actual rock artists in the first place, and I suppose they have to make do with what the artists produced. To call it "rock radio" is blasphemy though. And whoever thought it a good idea to put rap/hiphop on "rock radio" should be hanged from their balls in public.
Thankfully radio songs aren't as prominent in the game as I feared. Which is both good and bad, as I cant even adjust music volume when Im listening the good radio songs.
Morro Rock is the only station that doesn't make me want to instantly kill myself via traffic accident, although it really doesn't contain a lot of good rock songs if you ask me. The Samurai songs are okay, I guess,beacuse they are at least tied to the plot, but the game soundtrack really lacks some good "classic rock" for lack of a better word. You know, something with actual, high class riffs and singers that don't just scream, but sing? Considering the game is a retrofuturistic 80s fantasy, you'd think they offered a bit more rock music based on music from that era?