Right now I have a Ridgid fiberglass handle flat shovel.
I have had an Ames with a fiberglass handle, and wore out two of whatever brand it was that Home Depot carried before they went to Ridgid. Those two were probably my favorite of all.
Now in a wood handle, I gotta agree with Razorback. The weight, the angle of the blade to the handle, the heavy steel that the blade is made out of, all add up to a really good shovel.