I have both Clark's original desert boots and Lowa Zephyr GTX Mid Hiking Boots.
While I love my Clark's I would not necessarily recommend them for actual wilderness wear, their leather is thick, but easily gets marred, their ankle support is decent but not stellar, and if you're carrying a load like a backpack, you're going to want a "real" boot with better lacing. However, they are very nice around town, depends what you're doing. If you want to grab some for cheap, I grabbed mine for $80 at Nordstrom's Rack.
The Lowa Zephyr GTXs (which are a slightly beefed up version of the desert boot) have been nothing but excellent for me. I have backpacked the entire 50 mile West Coast Trail in the Pacific National Preserve on Vancouver Island of Canada in them- by far the wettest hike I've ever encountered, with rain every day, high humidity, ankle-deep mud, 200ft ladders and 5 days of gear on my back the entire time- the boots never once skipped a beat or leaked on one of the toughest hikes in the world.
Once my feet became accustomed to them- with SmartWool liners and Expedition socks- never a blister. I've taken them into 100+ heat in Utah without an issue, and are remarkably cool for their capability. They are all-day comfortable, incredibly well made (designed in Germany and handmade in Slovakia) and have thus proved indestructible. They are the most comfortable boot I've ever worn (and I have flat feet) so I rank them a 5 out of 5 stars. I extremely highly recommend them.
OR, if you reevaluate your needs- I also cannot say enough good things about my Vibram FiveFingers- minimalist footwear is another discussion entirely, but nothing compares to the comfort and versatility, plus the breeze through the cloth is rather nice on hot days. Check them out if you're feeling froggy. :sombrero:
Hope it helps :ylsmoke: