The two edge loops on the handle, and even the two loops in the middle of the blade. Since they don't add anything to the silhouette, there is not much point in having them there. If you got rid of those, you could even go with some more elegant details and keep the same amount of polys. Right now, there are about 64 polies that are not needed.
I attached a pic of the polys that you can remove.
Good job, though. The sword looks nice and crisp. Ready to cleave off an arm!
EDIT: Oops.
You beat me to it. I had some work to do here before I hit submit.
My green thumb grew the tree my Trojan War horse was crafted from. With roses in our pockets we rally round the tombstones. Ashes to ashes, we all fall down.