Personally, I prefer a heavy soled boot that doesn't flex for really long days on uneven terrain. Something that has good ankle support as well. Lineman or smokejumper (wildfire fire fighters) boots are what I wear. They aren't light, but that's the point. Loggers run similar terrain, look what they wear, 5-7 days a week.
Your leg muscles are stronger than those in your feet, and if you're walking on uneven terrain, you're going to wear out your foot muscles in a hurry through flexing, and straining the small muscles there. A heavy soled boot that doesn't flex, keeps the smaller muscles from being overworked, and keeps the strain to your legs. I've gone 20 hours straight in a pair of lineman boots, in and out of equipment, in and out of climbing spurs, and around all sorts of terrain, and while my feet aren't fresh at the end of the day, I'm not crippled and forced off my feet either, and I'm ready to go back in the same boots the next day after a few hours rest. I can't say the same for when I've worn my Salomon Speedcross 3 or 4's for 12+ hours on uneven terrain. Sure, I'm faster in the trail shoes, but it's a tortoise vs. hare comparison.
I personally wear Hoffman's, hand made in Kellogg, ID (you'll see the pencil marks from tracing patterns when you get them). They are a phenomenal company to work with, but you're going to need 2-3 months to break them in (start with a couple hours a day, then 4, then 6... you'll know when they're broken in, as it'll be like a second skin to your foot, and no more blisters).
There's a reason smokejumpers and lineman wear these kinds of boots. If you're in similar terrain, and packing like they are all the time, you'd appreciate them as well. FYI, mine are 10 years old, rebuilt twice, and still my favorite, most comfortable boots. Way cheaper in the long run than any Danners (second best, IMO), Red Wings, Rocky, or Chippewa boots I ever owned. ~$50/yr even with rebuilds and a good leather preserve (Obenhaufs FTW).
White's boots are completely customized to your foot, and if you have odd shaped feet, they're hands down the best thing ever. But, be prepared for sticker shock.
