Ceramic ones ( I have those
http://goo.gl/cGy59 )
Pros
- sharp
- easy to clean
- no iron in your food
- last 10x than steel ones and they stay sharp
- cheap
- 21 century technology from Japan
Cons
- can be broken
- can't cut meats with bones or really hard stuff (since it could damage them)
Check those out
http://goo.gl/cGy59