We only use Ridgid shovels. We are constantly digging here in Florida and any of the wooden handle shovels we have tried have always broken. We have had good luck with the Ridgid brand shovels so far. Even though they are a little expensive, they seem to hold up over time.
Leakfinder have you tried the Razorbacks? I have only busted a few handles and that was only when we have been abusing them like pulling up concrete or asphalt. I have never been a fan of fiberglass handled shovels but I gues to each their own.