Out of all the games from Supermassive I've played, House of Ashes may have the best characters out of all of their games. Paul Zinno and Nick Tarabay's performance was a stand out out of the whole cast and the writing is probably the best I've seen in a Supermassive game even with the crazy shit going on in the game.

If you were interested in these games and could only go with one, House of Ashes is my recommendation.