Well, its not a a matter of what looks better.
No offense to me they look like cabbage, xD.

Anywho, a way to make it look better would be to restart, and go back and define the individual blades, like on this tut...

http://pixel-zone.rpgdx.net/shtml/tutmini-grass.shtml

You should check the pixel art home page, and scroll down to the bottom. There truely are a lot of helpful tutorials, and it might benefit you greatly.