[Spoilers] Don't like

[Linux.Blue]

both games have their ups and downs

Overture seemed a bit more creepy/morbid, maybe depressing in the sense that you are alone, everything is new and you have killer dogs, spiders and worms after you

Black Plague was nice without the fighting; a little more of a scare

Overture had a better crazy guy; maybe he's just the original and I prefer original over anything else.

Black Plague had some nice music (overture is great too, but the intro to black plague is just perfect!)

overture, no bosses (didn't care for bosses in Black Plague).

Overall, they had some good strong points, and some weaknesses.