Well just glancing at my shelf we've got Skate, The Darkness, Amped 3, Crackdown, Forza 2, PGR3, Saints Row, Ninja Gaiden 2, Civilization revolution, Guitar Hero 2 and 3 (I know 3 is on PC but its more of a console game), FIFA 08 (completely different to the one on PC), Rockstar's Table Tennis, Burnout Paradise (announced for PC I think but again more of a console game to me).
Then there are games which are on PC but are more appealing to me on console, like Flatout UC, Assassins Creed and Tomb Raider Anniversary.
Then I have about 10 XBLA games, stuff like Rez, Switchball (which I think is on pc?) and Bomberman.
Skate looks boring, it's a skating game ?
The Darkness looks a bit odd, what are those creatures

?
Amped 3, again, it's just not my type of games, not really interested in any sports games.
Crackdown looks quite fun though, just not sure about the graphics but then, games aren't about that, so I should like it

...
Forza 2 : Awesome, just a shame I really suck with a joypad/ 360 controller in driving games.
PGR3: Awesome.
Saints Row: SR2 is coming to pc, no reason to buy a 360 for it imo...
Ninja Gaiden 2: iirc this is like Devil may cry right? If so then it's fun to play for 30 minutes every day, hope it has a nice story...
Civilization revolution : Looks like a dumbed down civ4 from what I see on the civfanatics forums...
Guitar Hero 2 and 3 : I've already finished Guitar hero 3 on pc...
FIFA 08: I've had enough of footy games since PES5.
R* Table tennis: Looks boring if I have to be honest.
Burnout is coming to pc and appears to run superb on pc from what the makers claim...
Flatout UC: Played Flatout 2 to the death, I doubt I'll replay it if it offers so little new things...
Assassins Creed: Playing on pc thx, no reason to get it for 2 platforms when I already have it on pc.
Tomb Raider Anniversary: Got bored after 2 hours of playing it...
If any game comes out on pc too, I'm getting it for the pc, it's far nicer imo to play with mouse and kb for most games, and the games like DMC4, I have an imitation ps2 controller which feels much nicer in my hand than the 360 controller, and for all racing games except really arcady ones, I use a steering wheel on my pc.... The sometimes better eye candy and better performance is a bonus too.
I might be not sure about spending on a console, but that's because I'm just so used to pc, spending on a pc it's a no brainer usually for me, if one game ( well except crysis) doesn't run/look well enough on my current spec, a hardware upgrade is inevitable...
If its just for one game I would say dont bother because you will come to regret it.
That isn't helping me buy one

.
That's the problem I keep telling myself that all the time, but I also keep wanting to play gta iv every time I hear / think of it...