I like some meat on my games, having at least 6-7 hours is a good thing since it would take me a bit in order to beat it. God Hand took me over 12 hours to get where I'm at, I still haven't beaten it (!@#$ing level ><), and it's friggin' awesome. I'd say the same thing about Prototype, but the controls and combat are so messed up, I can't enjoy it (that, and the difficulty curve spiking a 90 degree angle at about the halfway point). I want a good, long game that takes under 15 hours to beat, but last at least half that much, while also having a nice difficulty curve. I don't mind hard games, but making the enemies stronger on each level while you've got nothing, and having the controls suck harder than a thirsty whore are just bad ideas.