@BHR_3 I agree that AW will probably sell better but I believe that is because it is an action adventure game in the survival horror sub-genre not because it is a better game. Anything that is "better" is going to depend on the person's own preferences. Better is an opinion and very subjective.
Currently gamers are more interested in FPS or TPS action/adventure type games (sales speak volumes). Strict adventure games do "not" sell well.
I hope Heavy rain succeeds and we can have more adventure games published.