I find the "jungle" boots to be pretty comfy. The soles and heels of them tend to be pretty soft and wear out quite fast, especially when worn on pavement.

I both like and hate the drains on them. I never liked the idea of water seeping into the boot when I step in a shallow puddle, but the drains actually work pretty well at getting the water out.

The mostly fabric upper breathes well. My feet sweat but it is not a problem with this style of boots.

I wear nylon socks as liners and an outer wool/synthetic blend socks.

I like the protective sole plate in them as it helps deal with the bigger gravel chunks and other stuff that I occasionally step on. It spreads the impact out over a larger area. otherwise I feel it every time.

I like the nice ankle support too.

In fact, i just bought another pair. New old stock. labeled 4-97.

It seems that the cold weather boots, current issue, have gore tex liners and some sort of thinsulate type insulation. Thehot weather are usually justthe leather or leather/canvas similar to the old Nam boots. That being said, they dont feel as comfortable to me as the surplus boots did.

As for socks, I just usethe refular white cotton crew socks for most everything. Occasionally smartwool if the temp is less than 40. Uniform socks when appropriate. But Ive hiked hundreds of miles, with few blisters, in crew socks.