Cold Steel Master Hunter is wide, somewhat thick, and very tough.

For general purpose you can't beat a Mora-style knife with plastic handles, e.g. from Frosts of Sweden. They're dirt cheap too, like 10-15 bucks. Less of a pry bar and more of a practical knife than the Master Hunter. Main annoyance is the plastic sheath that comes with it is rather crappy, but for your purpose that probably doesn't matter. ragweedforge.com is a good source.

http://www.ragweedforge.com/SwedishKnifeCatalog.html

Model 760 from the above page is probably the closest modern equivalent to the classic Mora #1.