I've done many multi-day hikes in Chaco sandals, including segments of the John Muir Trail and Pacific Crest Trail, even in the snow. They kind of don't work very well for snow, but they are far better than any boots I've ever hiked in. I'll never do boots again. Recently I got some Altra Lone Peaks which are sort of hybrid minimalist shoes. They're awesome! I would totally hike the entire PCT in them. I've got some VFFs but I don't think I like them well enough to wear them on a long hike. Just for your consideration, my gear is around 10lbs before food and water is included and I like to hike 15-30 miles a day.
Female, 5'3", 50, Starting weight: 163lbs. Current weight: 135 (more or less).
I can squat 192.5lbs, press 75lbs and deadlift 210lbs