I like BFG tires and I have had 2 sets of kdws, 2 sets of kdw (version with the strange tread pattern) and I am on my first set of g-sports.
If you drive in winter with a lot of snow and ice than get the kdws.
The kdw are good tires and have more grip than the g-sport, but they wear fast. I enjoyed them, but if you drive a lot of miles, than I don't think they are worth it. I drive an average of 19,000 miles/year on my 02 GT and both sets lasted me about 25,000 miles.
I have put about 20,000 miles on my current set of g-sport and they have at least another 10-15,000 miles left in them. The ride good and have decent grip, espeically for every day driving.
If yours is a daily driver and you need to watch cost, I would go with g-sport.
Good luck