1.Interesting but seems limited.
2. needs more then 2
3. I'm not sure I understand this plot
4. need more then 2
5. could be interesting to do but it might be limiting. 
6. needs more then 2
7. very limiting 
8.Might be interesting but limiting. 
9. Maybe 
10. More then 2
11. Too complicated
12. Similar to my time traveler plot