My criteria are a sole that doesn't fold over on itself, and room in the toe box. The Montrail Wildwood TR (discontinued) was awesome, had a solid sole and the mesh was great - mega-breathable, didn't irritate the fungus issue, the shoe and wool sock dried within an hour of cruising through a creek. Its cousin the Montrail Mountain Masochist on the other hand just rolls up like there's nothing in there for support - and yep, it's well named.

Merrel Moab Ventilators worked on day hikes, but like the Masochists the sole was just flimsy. I liked the breathability but sold the shoes.

I can backpack with up to 30 lbs on my back with Trekstas with the stock insole. I wouldn't do that with just any shoe. I'll also never get another North Face shoe - just not a good fit to my foot, and never found a model of theirs that wasn't just an oblong without accommodation for my toes.