Fiberglass handles are better. I've snapped a few wood handles in my day.

Lifelong Minnesota here. I prefer using a steel "snow pusher" for clearing the driveway and sidewalks. If you can handle the extra weight, I recommend the 30" Bully Tools snow pusher with the fiberglass handle. They also make a 24" version.

I inhereted an older steel pusher from my father and it's 35+ years old. In my experience, the plastic ones break when it's sub 0°F and you can't scrape/chisel packed ice with them. Metal can take much more abuse.