In reply to arnie2001:
In order to answer which boots do you want, I would ask few questions before:
1. How heavy your rucksack tends to be? More ankle support would be needed if your rucksack is heavy.
2. Are you planning to stay overnight on the hills? I am not sure whether it is really important, though (it's just addition to first question, I suppose).
3. How many miles are you planning to walk?
4. Are you planning to head to unbeaten tracks? A little bit tougher boots might be required.
5. Do you prefer leather or fabric boots? It looks like they are really similar in all aspects.
6. Are you planning to walk in winter? If so, crampon compatible boots would be required.
7. Are you into low-level stuff or scrambling, steep slopes, etc? More flexible boots are more comfortable for low-level walking, but stiff and sturdy boots are better for steep sections of the route.
I am into 4 season walking, with quite heavy rucksack (10-15kg), tend to wander to unbeaten tracks with many bogs and I like longer trips (like a week or so, with camping out every night). I killed Asolo Flame GTX boots (which are crap for the price, in my opinion), so bought Scarpa SL Activ boots last week. They seem to be better, lots of durability and are very stiff for walking, but I prefer heavier and stiffer boots so my ankles stay safe. I am not sure if Scarpa SL Activ boots was the best choice, but I will see.