I've only taken a few projects into further account, as the ones I did not list did not have enough information to actually do sth with it or were not clear to me.


Me, Myself, and My Enemy
This game sounds really fun, but it has a lot of effort to do on the artist's side, as it needs several time periods - and we are lacking artists for sure. This means a lot of different textures, sounds, and models are needed.
Also I'd like to see more detailed information of the kind of puzzles, available items, etc. Basically just some more details.


Broken Planet
I like the idea, but in order to really make something out of it, more than this short document is needed. Too many things are unclear . it's not even possible to do a very rough effort estimation - but I think it would be a very psychedelic fun game.
With a real design doc this one could have been a winner...


Sorcerers
Also I like that idea a lot, but I'm not sure if the overall concept will work out well this way. Also it needs GOOD AI (use IntenseX?) and possibly multiplayer support.
Still, the multiplayer game seems to lack due to long waiting times (turn based). At least some sort of sabotage should be possible to perform by the waiting players.
If this was brought over to realtime in a proper way, I would be highly interested.
The role of the "manna" could be explained a bit better. It was not fully clear to me after reading the document.


The Arcade Room
The idea is ok, but it feels like 8 teams are doing 8 games, and the 9th team is building a wrapper around. While this is ok for many people with not so much time, imho it defeats a bit the original goal to have ONE team...
Interesting however is the trophy part. This would allow to add a lot of long time motivation with easy things like I mentioned earlier in this thread (when I took Onechanbara as example).
Also it is realistic that this project can come to a finish.


Enemies
The best and most detailed design document which was presented up to now.
The gameplay sound solid and fun - but for long time motivation some more nifty stuff has to be added - like special game modes or some more abstract tasks.


For now, Enemies is my favorite. Also concerning the resources it seems to fit quite well. A lot to do for coding (procedural level generation), some nifty shader stuff and a managable amount of graphics work.