I've played through three demos in the last two days and this has given me a false sense of accomplishment. I haven't been finishing many games lately. And, those games that I have finished left me with an empty feeling (ex: 50 Cent: Blood on the Sand). I played Enslaved the other day and was really taken with the game mechanics and story of that game. Last night I played through the Darksiders demo, which was really long. I really felt a sense of accomplishment after my one hour playthrough of Darksiders. Finally, I just finished the new Castlevania demo on PS3. I found this game pretty bland.

After playing trough Darksiders, Dante's Inferno, and the new Castlevania demo on PS3, I have realized that this GoW apeing is getting a little out of control. I think that this style change is a good restart for the 3D Castlevania franchise. But, because I am playing Dante's and GoW on PS3 this new Castlevania just seemed like a bland copy. I think that this reboot is much better than the other 3D incarnations of Castlevania.

Playing these demos has given me that same feeling of satisfaction when I finish a full game. Its nice to finish something, no matter how small.  

Congratu-well-done.
 
I agree on Castlevania, only 40 minutes into the game I sighed to myself "a GOW clone, really?" I will complete it while I've bought it and trade it in somewhere ASAP. Seems the franchise would've made a better Bayonetta clone. Now I want to play Bayonetta, stupid Lords of Shadow.

@FLStyle:

Bayonetta was super sick. I need to play through the rest of the game though. It has been moved to my pile of shame. 

I never played he Castlevania LoS demo, I just bought it because of hype alone. If the demo doesn't offer the player to play with the light and shadow magic, then the demo does not do the game justice. 
I felt the game was amazing and was a huge joy to play. I didn't feel like I was playing a God of War clone, it felt like its own thing. 
Things really start to pick up after Chapter 3 of the 12 chapters. I highly recommend you give it another shot. 
 
Maybe I would have felt the same way if I played the demo first, but luckily I didn't. While I enjoyed the look and feel of the Enslaved demo, it didn't show much "game." I'll get it eventually because I heard its worth it. And I guess I better support the new DmC handlers. 
 
The Darksiders demo was pretty amazing and generous. I was honestly surprised at how long the demo went for. I really need to get that game soon, I've been itching to play the real thing.

I agree with you about the fact of the GOW  clone affair and Darksiders but after 1 hour of play the game changes to a more open and diverse game, I know that the fighting mechanics really do feel like GOW but I more easily compare the game to one released 1999 to the Playstation called Legacy of Kain: Soul Reaver.  
 
http://deepwatergames.blogspot.com/

Darksiders is by it's own right a very good game, although it boroughs some ideas from other games such as Good of War, Legend of Zelda, Legacy of Kain: Soul Reaver or even Shadow of the Colossus, it does in such a way that doesn't seems cheap. In contrary it does in a way that feel fresh and new, making Darksiders an enjoyable and rewarding gaming experience.     
 
http://deepwatergames.blogspot.com/2010/11/now-palying-darksiders.html