Which movie genre looks best on Blu-ray ?

[CinematicExplorer]

After watching a couple of dozen of blue-ray movies on my 50 inch 1080p Panasonic Viera Plasma with my Panasonic Blue-Ray player (DMP60) so far, I found to get the most out of blue-ray from Sci-Fi/Fantasy movies like Spider-Man, The Day the Earth Stood Still and Watchmen. A very close second would be Action/Adventure movies like Pirates of Caribbean.

Comedies like Mamma Mia! did look nice on Blue-Ray, but that's primarily because of a lot of natural scenes, which generally excel on Blue-Ray (I would imagine comedies that are filmed primarily inside shouldn't look anything special)

I haven't had a chance to watch a horror movie yet, but the dramas I've watched so far, my favorite genre, underwhelmed me. I didn't find much benefit in watching HD as opposed to DVD, in all the dramas I've watched so far on Blue-Ray: "The Curious Case of Benjamin Button", "Slumdog Millionaire" and "Milk"

Of course I make big generalizations here, but as a rule of thumb I guess I should really focus on watching Action & Sci-Fi movies (especially the new ones) on Blue-ray, as for other genres, unconverted DVD should suffice.

Please note that I use my headphones when watching movies (to not awake my neighbors) so I don't factor sound here, only video.